{"title":"Air Permeability Tester","description":"\u003ch2\u003eAir Permeability Testers | ASTM D737 \u0026amp; ISO 9237 Fabric and Nonwoven Testing\u003c\/h2\u003e\n\u003cp\u003eAn air permeability tester measures the amount of air passing through a flat material under a controlled pressure difference. Test results are typically reported as face velocity or volumetric airflow per unit area. Textile mills, PPE manufacturers, filtration companies, and paper converters use air permeability testing to evaluate breathability, airflow, filter performance, and barrier properties. Qualitest offers air permeability testers designed to meet ASTM D737, ISO 9237, and ISO 9073-15 testing requirements.\u003c\/p\u003e\n\u003cp\u003eThe three testers in this range are configured for different pressure ranges, specimen thicknesses, and connectivity requirements. Each system securely clamps the specimen over an interchangeable test head and draws air through the material using a vacuum pump. The controller maintains the specified pressure differential while a calibrated nozzle measures airflow. Test results are displayed directly on the instrument in the required measurement unit, eliminating the need for manual conversions.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose Qualitest for Your Air Permeability Tester\u003c\/h2\u003e\n\u003cp\u003eQualitest North America provides precision textile and material testing equipment for laboratories, quality control teams, and manufacturers, supported by technical assistance and calibration services. Our air permeability tester range is designed to deliver consistent, standards-based measurements for fabric, nonwoven, filtration, and other porous materials.\u003c\/p\u003e\n\u003cp\u003eOur team can help you select the right air permeability testing system based on your material type, specimen dimensions, applicable testing standards, pressure requirements, and testing volume. From system selection and installation to ongoing technical support, Qualitest provides a complete testing solution for your laboratory.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eAir permeability testing is used across a wide range of industries where controlled airflow and material porosity influence product performance, comfort, filtration, or barrier properties.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eApparel and Home Textiles: Measures the breathability of woven and knitted fabrics used in sportswear, outerwear, bedding, upholstery, and other textile products.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNonwovens and Hygiene Products: Evaluates airflow through spunbond, meltblown, and composite nonwoven materials in accordance with EDANA 140.1 and ISO 9073-15.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMedical Textiles and PPE: Tests mask materials, surgical gowns, and protective clothing to assess airflow resistance and wearer comfort.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAir and Liquid Filtration Media: Characterizes filter paper, pleatable filter media, and dust-collector fabrics during product development, quality control, and incoming material inspection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePaper, Board, and Packaging: Measures air permeability in tissue, kraft paper, and packaging board where material porosity can influence converting, processing, and product performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAutomotive Interiors and Airbag Fabrics: Verifies the controlled permeability of seat fabrics, headliners, airbag textiles, and other automotive materials against specified requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFlexible Foams and Sponges: Determines airflow characteristics of polyurethane slabstock foam and cushioning materials according to ISO 7231 and ASTM D3574.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGeotextiles and Building Membranes: Evaluates housewrap, breather membranes, drainage geotextiles, and other porous construction materials for specified airflow performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAir Permeability Tester Range\u003c\/h2\u003e\n\u003cp\u003eQualitest offers three air permeability tester models designed for different pressure ranges, specimen thicknesses, testing applications, and data connectivity requirements.\u003c\/p\u003e\n\u003ch3\u003eQualiPermatest™ Series\u003c\/h3\u003e\n\u003cp\u003eThe QualiPermatest™ Series provides the broadest measurement range, covering air velocities from 0.1 to 12,000 mm\/s at specimen pressure differentials up to 1,000 Pa. Six test areas and ten interchangeable nozzles ranging from 0.8 mm to 16 mm accommodate materials ranging from dense coated fabrics to open filter meshes.\u003c\/p\u003e\n\u003cp\u003eThe clamp accepts specimens up to 12 mm thick, making the system suitable for foams, thick filter mats, and other porous materials. The QualiPermatest™ I features PLC touchscreen operation, while the QualiPermatest™ II adds PC-based control for laboratory workflows and data management.\u003c\/p\u003e\n\u003ch3\u003eAir Permeability Tester – AirFicient\u003c\/h3\u003e\n\u003cp\u003eThe AirFicient is designed for connected testing and convenient data management. Its Wi-Fi connection works with the SmarTexLab smartphone app, allowing operators to configure test parameters, monitor test progress, and share results without remaining at the instrument.\u003c\/p\u003e\n\u003cp\u003eUsing the standard 20 cm² test head, the AirFicient measures air velocity from 0.6 to 10,000 mm\/s, with test pressures from 10 to 2,500 Pa. Sixteen selectable measurement units support different reporting requirements. Maintenance-free range conversion components help maintain repeatable measurements during extended testing and production QC workflows.\u003c\/p\u003e\n\u003ch3\u003eTextile and Fabrics Air Permeability Tester – Permatest\u003c\/h3\u003e\n\u003cp\u003eThe Permatest is a touch-panel air permeability tester designed for textile, fabric, and mask testing laboratories. It supports test pressures up to 4,000 Pa and an air velocity range of 0.1 to 9,999 mm\/s.\u003c\/p\u003e\n\u003cp\u003eStandard configurations include 20 cm² and 38 cm² test heads with eleven interchangeable nozzles. An automatic specimen holder starts the test when the specimen is positioned and stops the pump when it is released, helping reduce operator-related variation and improve testing consistency.\u003c\/p\u003e\n\u003ch2\u003eHow to Choose the Right Air Permeability Tester\u003c\/h2\u003e\n\u003cp\u003eSelecting the right air permeability testing instrument depends on your specimen thickness, pressure requirements, measurement range, connectivity, and laboratory workflow.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFor thick foams, filter mats, or broad measurement ranges: Choose the QualiPermatest™ Series for specimens up to 12 mm thick and an air velocity range of 0.1 to 12,000 mm\/s.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFor laboratories using multiple reporting methods: Consider the QualiPermatest™ Series or AirFicient, which provide seven and sixteen measurement units, respectively.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFor multi-site quality control or remote monitoring: The AirFicient provides Wi-Fi connectivity through its smartphone app for parameter setup, test monitoring, and result sharing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFor high-pressure testing of dense coated fabrics: Choose the Permatest, with test pressures up to 4,000 Pa.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFor routine apparel, textile, and mask media testing: The Permatest combines an automatic specimen holder with analysis software for efficient routine testing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFor LIMS integration and PC-based laboratory workflows: Choose the QualiPermatest™ II, which includes an RS232C interface and dedicated operating software.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFor specimens below 10 mm using a standard 20 cm² test head: Any of the three models may be suitable. In this case, compare connectivity, pressure range, measurement range, and data-management requirements to select the best configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRequest a Quote\u003c\/h2\u003e\n\u003cp\u003eShare your material type, required test area, pressure range, applicable standard, and expected testing volume, and our team can recommend the right air permeability tester for your application.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/qualitest.us\/pages\/contact\"\u003eContact the Qualitest team\u003c\/a\u003e for pricing, configuration options, and lead times.\u003c\/p\u003e","products":[{"product_id":"air-permeability-tester-airficient","title":"Air Permeability Tester – AirFicient","description":"\u003ch2\u003eAir Permeability Tester – AirFicient\u003c\/h2\u003e\n\u003cp\u003eThe Air Permeability Tester – AirFicient is a precision textile testing instrument designed to deliver fast, reliable, and repeatable air permeability measurements. With smart connectivity, users can configure test parameters and monitor testing progress directly from a smartphone, helping streamline laboratory workflows and improve testing efficiency.\u003c\/p\u003e\n\u003cp\u003eDesigned for a wide range of breathable materials, the AirFicient is suitable for technical textiles, nonwoven fabrics, and other porous or air-permeable materials, including sponges, paper, and similar products. Its versatile testing capability makes it suitable for textile quality control, research and development, and material performance evaluation.\u003c\/p\u003e\n\u003cp\u003eThe Air Permeability Tester supports recognized testing standards, including ASTM D737, ISO 9073-15, ISO 9237, JIS L1096 Item 8.26 Method C, BS 3424-16, BS 6F 100 3.1, and NWSP 070.1.RO(15), among others.\u003c\/p\u003e\n\u003ch3\u003eAir Permeability Testing Principle\u003c\/h3\u003e\n\u003cp\u003eThe tester measures the volume of air passing vertically through a test specimen under a specified pressure differential. Air flows from one side of the material to the other, creating a controlled pressure difference across the specimen. The instrument measures the resulting airflow and calculates the air permeability value, providing an accurate indication of the material's breathability and airflow characteristics.\u003c\/p\u003e\n\u003ch3\u003eKey Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eTechnical and performance fabrics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNonwoven materials\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBreathable textiles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSponges and porous materials\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePaper and filtration-related materials\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTextile quality control and research laboratories\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe AirFicient Air Permeability Tester combines precise airflow measurement, broad material compatibility, smartphone connectivity, and support for widely recognized testing standards in a single solution for modern material testing laboratories.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/Capture_e241aa70-3741-4359-9e56-290c96dcb0c6.webp?v=1786978165\" alt=\"Air Permeability Tester – AirFicient\"\u003e\u003c\/p\u003e\n\u003ch2\u003eAir Permeability Tester – AirFicient Features\u003c\/h2\u003e\n\u003ch3\u003eFast and Easy Air Permeability Testing\u003c\/h3\u003e\n\u003cp\u003eThe AirFicient Air Permeability Tester is designed for simple, efficient operation. Users can select the required test standard and measurement unit directly from the intuitive operation screen. The system automatically identifies the measurement range of the installed test fixture head, allowing users to begin testing quickly and obtain results with minimal setup.\u003c\/p\u003e\n\u003ch3\u003eReliable and Repeatable Test Results\u003c\/h3\u003e\n\u003cp\u003eAirFicient incorporates an advanced range-conversion system with maintenance-free components to support consistent airflow measurement and minimize measurement loss. High-quality internal components, including precision pressure sensors from established manufacturers, contribute to accurate, repeatable, and reliable air permeability test results for a wide range of materials.\u003c\/p\u003e\n\u003ch3\u003eSmart Air Permeability Testing\u003c\/h3\u003e\n\u003cp\u003eWith built-in Wi-Fi connectivity, the AirFicient can connect to the SmarTexLab App on a smartphone. The app allows users to configure test parameters, monitor testing status remotely, receive equipment alerts, and share test results with quality control teams, laboratories, and brand purchasing teams. This connected workflow makes air permeability testing more convenient and efficient while supporting better test data management.\u003c\/p\u003e\n\u003ch2\u003eMeasurement Principles and Textile Testing Standards\u003c\/h2\u003e\n\u003cp\u003eThe AirFicient Air Permeability Tester measures how readily air passes through a textile or porous material by evaluating airflow under a controlled pressure differential. Based on principles derived from Darcy’s law and related non-linear flow behavior, the instrument determines air permeability by measuring the relationship between pressure difference and airflow through the test specimen.\u003c\/p\u003e\n\u003cp\u003eTo support widely recognized textile testing standards, including ASTM D737, ISO 9237, ISO 9073-15, JIS L1096 Item 8.26 Method C, BS 3424-16, and NWSP 070.1.RO(15), AirFicient directs air vertically through the test specimen. A controlled pressure differential of 10 to 2,500 Pa is applied across the material while the system measures the resulting airflow.\u003c\/p\u003e\n\u003cp\u003eThe measured airflow is used to calculate the material's air permeability, providing accurate and repeatable data for evaluating fabric breathability and airflow performance. With measurement accuracy of \u0026lt; ±2%, AirFicient helps minimize measurement uncertainty and supports consistent testing across textile and material testing applications.\u003c\/p\u003e\n\u003ch2\u003eKey Test Variables\u003c\/h2\u003e\n\u003ctable class=\"table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eVariable\u003c\/th\u003e\n\u003cth\u003eHow it’s Controlled\/Measured\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePressure Drop (Δp)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRegulated by highly dependable vacuum pumps, such as the top-grade internal parts inside the AirFicient, testing smoothly from 10 to 2,500 Pa.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMeasured by automated test heads, handling an incredibly wide range of 0.6 to 10,000 mm\/s on a standard 20 cm² setup.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSample condition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFactoring in how physically squished the layered material currently is, accommodating thick textile samples up to 10 mm.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eTypes of Air Permeability Testers and Modern Setups\u003c\/h2\u003e\n\u003cp\u003eModern air permeability testers have evolved into specialized laboratory systems designed for accurate testing of fabrics, garments, nonwoven materials, and other porous specimens. Advanced instruments combine controlled airflow measurement with automated fixture recognition, digital data processing, and connected testing capabilities.\u003c\/p\u003e\n\u003ch3\u003eSteady-State Fabric Air Permeability Testers\u003c\/h3\u003e\n\u003cp\u003eSteady-state air permeability testers measure airflow through a specimen under a controlled pressure differential. The AirFicient Air Permeability Tester enhances this established testing approach with maintenance-free range-conversion components for consistent and convenient operation.\u003c\/p\u003e\n\u003cp\u003eThe system can automatically recognize different test fixture sizes, supporting a standard 20 cm² test area as well as optional 100 cm², 50 cm², and 38 cm² test heads. This flexibility allows the tester to accommodate different material types and testing requirements.\u003c\/p\u003e\n\u003cp\u003eAirFicient also supports specimen thicknesses of up to 10 mm, with automated measurement processing designed to compensate for potential physical effects associated with compressed or thicker specimens.\u003c\/p\u003e\n\u003ch3\u003eConnected Laboratory Air Permeability Testing Systems\u003c\/h3\u003e\n\u003cp\u003eModern laboratory testing systems reduce manual data handling through digital controls and connected test management. AirFicient can connect to a facility's Wi-Fi network and pair with the SmarTexLab smartphone app, allowing users to monitor active tests, configure instrument settings, receive equipment notifications, and share test data.\u003c\/p\u003e\n\u003cp\u003eThe system supports 16 measurement units, including mm\/s, cfm, L\/m²\/s, and m³\/min\/m², providing flexibility for laboratories working with different testing specifications and reporting requirements. Automated calculations and digital result processing help streamline testing and support consistent quality control across textile laboratories, manufacturers, and brand inspection teams.\u003c\/p\u003e\n\u003ch2\u003eTheoretical Models and Measurement Corrections\u003c\/h2\u003e\n\u003cp\u003eUnderstanding air permeability measurement involves several physical factors, including airflow behavior, material resistance, fiber structure, specimen thickness, and pore characteristics. Mathematical models help describe how air moves through porous textile structures under different testing conditions.\u003c\/p\u003e\n\u003ch3\u003eLaminar Flow and Non-Linear Airflow\u003c\/h3\u003e\n\u003cp\u003eDarcy's law provides a fundamental model for airflow through porous materials under conditions where flow remains relatively stable and laminar. At higher airflow rates or when testing dense technical materials, however, pressure loss may no longer follow a simple linear relationship.\u003c\/p\u003e\n\u003cp\u003eFor these conditions, more advanced models, including the Ergun equation, can help describe non-linear pressure-flow behavior through porous structures. These models account for factors such as fluid viscosity, material structure, and resistance created by the individual fibers.\u003c\/p\u003e\n\u003ch3\u003eAirflow Permeability and Flow Resistance\u003c\/h3\u003e\n\u003cp\u003eAir permeability and airflow resistance are closely related properties used to characterize porous materials. By evaluating the relationship between airflow and pressure differential, testing systems can determine how readily air passes through a specimen.\u003c\/p\u003e\n\u003cp\u003eMaterial structure, thickness, porosity, fiber arrangement, and air viscosity can all influence measured airflow. Accurate laboratory testing therefore requires controlled pressure conditions and precise airflow measurement to produce consistent results.\u003c\/p\u003e\n\u003ch3\u003ePore Structure and Air Permeability\u003c\/h3\u003e\n\u003cp\u003eFor tightly woven and highly structured textiles, pore characteristics have a significant influence on airflow behavior. Factors such as pore size, open area, pore distribution, and overall porosity affect the amount of air that can pass through the material.\u003c\/p\u003e\n\u003cp\u003eBy combining controlled pressure differentials with precise airflow measurement, an air permeability tester provides quantitative data that can be used to evaluate the relationship between textile structure and air passage. This makes air permeability testing valuable for fabric development, material comparison, quality control, and performance evaluation.\u003c\/p\u003e\n\u003ch2\u003eAir Permeability Tester – AirFicient Technical Specifications\u003c\/h2\u003e\n\u003ctable class=\"table\" border=\"1\" cellpadding=\"1\" cellspacing=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMeasurement units\u003c\/th\u003e\n\u003ctd class=\"text-align-center\"\u003emm\/s, m\/s, l\/m²\/s, ft³\/min\/ft², cfm, cm³\/s\/cm², l\/s\/cm², l\/m²\/min, 1\/dm²\/min ,l\/min, m³\/min, dm³\/s, m³\/s\/m², m³\/min\/m², m³\/h\/m², ft³\/s\/ft²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTest Mode\u003c\/th\u003e\n\u003ctd class=\"text-align-center\"\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTest head\u003c\/th\u003e\n\u003ctd class=\"text-align-center\"\u003e20 cm² (standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTest pressure\u003c\/th\u003e\n\u003ctd class=\"text-align-center\"\u003e10 ~ 2,500 Pa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAir velocity\u003c\/th\u003e\n\u003ctd class=\"text-align-center\"\u003e0.6 ~ 10,000 mm\/s (20 cm²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMeasurable sample thickness range\u003c\/th\u003e\n\u003ctd class=\"text-align-center\"\u003e0 ~ 10 mm (other thicknesses and fixtures can be customized)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTesting Accuracy\u003c\/th\u003e\n\u003ctd class=\"text-align-center\"\u003e\u0026lt; +\/-2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOptional test heads\u003c\/th\u003e\n\u003ctd class=\"text-align-center\"\u003e5 cm², 25 cm², 38 cm², 50 cm², 100 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePower\u003c\/th\u003e\n\u003ctd class=\"text-align-center\"\u003e220\/110V 50\/60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"text-align-center\"\u003e125kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDimension\u003c\/th\u003e\n\u003ctd class=\"text-align-center\"\u003e970*400*970 mm(L*W*H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv id=\"gtx-trans\"\u003e\n\u003cdiv class=\"gtx-trans-icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Qualitest USA LC","offers":[{"title":"Default Title","offer_id":52857678561591,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/air-permeability-tester-airficient1599998702.webp?v=1786978107"},{"product_id":"textile-and-fabrics-air-permeability-tester-permatest","title":"Textile and Fabrics Air Permeability Tester – Permatest","description":"\u003ch2\u003eTextile and Fabric Air Permeability Tester – Permatest\u003c\/h2\u003e\n\u003cp\u003eThe Textile and Fabric Air Permeability Tester – Permatest is a precision testing instrument designed to evaluate the air permeability and air resistance of textile materials. It is suitable for woven, knitted, non-woven fabrics, and medical masks, providing reliable measurements for quality control, product development, and laboratory testing.\u003c\/p\u003e\n\u003cp\u003eThe Air Permeability Tester measures the pressure difference required to pass air through a test specimen at a controlled airflow rate. This enables accurate evaluation of the material’s air permeability performance. The instrument supports internationally recognized testing methods, including ASTM D737 and ISO 9237.\u003c\/p\u003e\n\u003ch3\u003eKey Features of the Air Permeability Tester\u003c\/h3\u003e\n\u003cp\u003eThe Permatest features an automatic specimen holder that makes sample placement quick and convenient. Press the holder to secure the test specimen and start the testing process.\u003c\/p\u003e\n\u003cp\u003eA built-in vacuum pump draws air through an interchangeable test head with a circular test opening. The system automatically maintains the preset test pressure and displays air permeability results digitally on the touchscreen control panel within seconds.\u003c\/p\u003e\n\u003cp\u003eWhen a different test nozzle or opening is required, the instrument provides a prompt for the appropriate change. After testing is completed, releasing the specimen holder automatically stops the vacuum pump, helping streamline the testing workflow.\u003c\/p\u003e\n\u003cp\u003eWith automated operation, digital result display, and support for ASTM D737 and ISO 9237, the Permatest provides an efficient solution for textile and fabric air permeability testing across a wide range of laboratory and quality control applications.\u003c\/p\u003e\n\u003ch2\u003eTextile and Fabrics Air Permeability Tester – Permatest Technical Specifications\u003c\/h2\u003e\n\u003ctable class=\"table\" border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecifications\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl\u003c\/td\u003e\n\u003ctd\u003eCan be controlled by the touch panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eThe result of air permeability test is displayed on the touch panel, units can be shifted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrinting\u003c\/td\u003e\n\u003ctd\u003eEquipped with printing function\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoftware\u003c\/td\u003e\n\u003ctd\u003eEquipped with analyzing software\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNozzles\u003c\/td\u003e\n\u003ctd\u003e11 nozzles are included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Test Heads\u003c\/td\u003e\n\u003ctd\u003e20cm² and 38cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasuring Range\u003c\/td\u003e\n\u003ctd\u003e0.1~9999mm\/s (L\/m 2s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Pressure\u003c\/td\u003e\n\u003ctd\u003e1 ~ 4000Pa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Thickness of Specimen\u003c\/td\u003e\n\u003ctd\u003e≤ 8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasuring Accuracy\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;+\/-2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Test Heads\u003c\/td\u003e\n\u003ctd\u003e5cm², 25cm², 50cm², 100cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e220 \/ 110 V, 50 \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e95kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (L*W*H)\u003c\/td\u003e\n\u003ctd\u003e1080 mm x 670 mm x 1080 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Qualitest USA LC","offers":[{"title":"Default Title","offer_id":52857681019191,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/textile-and-fabrics-air-permeability-tester-permatest1026176333.webp?v=1786978349"},{"product_id":"automatic-air-permeability-tester","title":"Automatic Air Permeability Tester","description":"\u003ch2\u003eAutomatic Air Permeability Tester - QualiPermatest™ Series\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/automatic-air-permeability-tester-2-393156902.webp?v=1786978628\" alt=\"Automatic Air Permeability Tester\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe QualiPermatest™ Automatic Air Permeability Tester measures the ease with which air passes through fabrics, nonwovens, foams, paper, and filter media under a controlled pressure differential. Designed for accurate and efficient laboratory testing, the QualiPermatest™ Series is suitable for textile mills, PPE manufacturers, filtration producers, and independent testing laboratories across North America.\u003c\/p\u003e\n\u003cp\u003eThe series includes two configurations to suit different laboratory requirements. QualiPermatest™ I features onboard PLC and touchscreen control, while QualiPermatest™ II combines PC control with dedicated testing software. Both configurations deliver test results in approximately 10 to 15 seconds, supporting efficient sample evaluation and quality control.\u003c\/p\u003e\n\u003cp\u003eA pneumatic clamping arm securely seals the specimen against the selected test head. The vacuum system then draws air through the sample until the specified pressure differential reaches a stable condition. The tester automatically identifies the installed test head and indicates when a nozzle change is required if the measured airflow falls outside the operating range of the selected orifice.\u003c\/p\u003e\n\u003cp\u003eTest results are displayed on the touchscreen in seven selectable measurement units. For test series, the system calculates maximum, minimum, and average values, while the integrated thermal printer provides a convenient hard copy for laboratory and batch records. An RS232C interface also enables test data transfer to a PC or LIMS, reducing the need for manual data entry.\u003c\/p\u003e\n\u003cp\u003eThe QualiPermatest™ Series offers multiple test areas, including 5, 20, 50, and 100 cm², along with Ø50 mm and Ø70 mm test heads. This range supports air permeability testing for apparel fabrics, airbag textiles, geotextiles, coarse filter mats, and other porous materials.\u003c\/p\u003e\n\u003cp\u003eWith an air permeability range of 0.1 to 12,000 mm\/s and measurement error of ±2%, the tester provides broad measurement capability for demanding laboratory applications. Ten interchangeable nozzles, ranging from 0.8 mm to 16 mm bore, help maintain the differential pressure across the orifice within its accurate operating range.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eAutomatic air permeability testing for fabrics, nonwovens, foams, paper, and filter media\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAir permeability range from 0.1 to 12,000 mm\/s\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMeasurement error of ±2%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTest results available in seven measurement units\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e10–15 second measurement time\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePneumatic specimen clamping system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAutomatic test head recognition\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAutomatic nozzle change indication\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTest areas from 5 to 100 cm²\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eØ50 mm and Ø70 mm test heads\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTen interchangeable nozzles from 0.8 to 16 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaximum, minimum, and average result calculation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated thermal printer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRS232C connection for PC and LIMS data transfer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePLC and touchscreen control on QualiPermatest™ I\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePC control and dedicated software on QualiPermatest™ II\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe QualiPermatest™ Automatic Air Permeability Tester provides a versatile solution for fabric air permeability testing, textile quality control, nonwoven evaluation, filter media analysis, and laboratory permeability measurements.\u003c\/p\u003e\n\u003ch2\u003eAutomatic Air Permeability Tester - QualiPermatest™ Series Applications\u003c\/h2\u003e\n\u003cp\u003eThe QualiPermatest™ Series is designed for laboratory testing of flat, porous materials where air permeability, airflow, or air resistance is an important performance characteristic. Its broad measurement range supports applications across textiles, nonwovens, filtration media, foams, paper, automotive materials, and construction products.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eApparel and Home Textiles: Measures the breathability and air permeability of woven and knitted fabrics used in sportswear, outerwear, bedding, upholstery, and other textile products. Results can support comfort evaluation, product specifications, and quality control.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTechnical and Industrial Fabrics: Evaluates airflow through coated fabrics, tarpaulins, sailcloth, parachute textiles, tenting materials, and other technical fabrics where controlled porosity can affect product performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNonwovens and Hygiene Products: Measures the air permeability of spunbond, meltblown, and composite nonwoven webs used in wipes, diapers, absorbent products, and hygiene applications. Testing can be performed in accordance with EDANA 140.1 and ISO 9073-15.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMedical Textiles and PPE: Assesses airflow through face mask materials, surgical gowns, medical drapes, and protective clothing. Air permeability testing helps evaluate airflow resistance, wearer comfort, and the balance between breathability and protective performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAir and Liquid Filtration Media: Characterizes filter paper, pleatable filter media, HEPA substrates, and dust-collector fabrics during product development, process control, and incoming material inspection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFlexible Foams and Cellular Polymers: Determines airflow characteristics of polyurethane slabstock foam, molded foam, and seat cushioning materials. The tester supports testing based on ISO 7231 and ASTM D3574.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePaper, Board, and Packaging: Evaluates air permeability and porosity of tissue paper, kraft paper, cigarette paper, packaging board, and related materials where airflow can influence converting processes and end-use performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAutomotive Interiors and Airbag Fabrics: Tests seat-cover materials, headliners, and airbag fabrics where controlled air permeability can influence deployment characteristics, cushioning behavior, and cabin comfort.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGeotextiles and Construction Membranes: Measures airflow through geotextiles, breathable building membranes, and other porous construction materials to support material characterization, quality control, and performance evaluation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eStandards\u003c\/h2\u003e\n\u003cp\u003eThe QualiPermatest™ Series supports air permeability testing across a wide range of internationally recognized standards for textiles, nonwovens, foams, paper, and other porous materials. Configurable test areas, pressure differentials, measurement ranges, and reporting units help laboratories set up testing according to the requirements of the applicable method.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eISO 9237 – Textiles: Determination of the Permeability of Fabrics to Air\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eISO 7231 – Polymeric Materials, Cellular, Flexible: Determination of Air Flow Value at Constant Pressure-Drop\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eISO 5636 – Paper and Board: Determination of Air Permeance and Air Resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eISO 9073-15 – Textiles: Test Methods for Nonwovens, Part 15: Determination of Air Permeability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eASTM D737 – Standard Test Method for Air Permeability of Textile Fabrics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eASTM D3574 – Standard Test Methods for Flexible Cellular Materials: Slab, Bonded, and Molded Urethane Foams\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBS 5636 – Method for Determination of the Permeability of Fabrics to Air\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDIN 53887 – Testing of Textiles: Determination of Air Permeability of Textile Fabrics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eJIS L 1096 – Testing Methods for Woven and Knitted Fabrics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAFNOR G07-111 – Textiles: Determination of the Permeability of Fabrics to Air\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEDANA 140.1 – Nonwovens: Determination of Air Permeability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAutomatic Air Permeability Tester - QualiPermatest™ Series Key Features\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/Capture1_6ad18e52-6783-4325-b9c7-64aa6a9e7394.webp?v=1786978656\" alt=\"Automatic Air Permeability Tester\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/Capture2_a626a167-6039-4e6a-b141-e06229d78a11.webp?v=1786978656\" alt=\"Automatic Air Permeability Tester\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe QualiPermatest™ Series streamlines air permeability testing with automatic specimen clamping, test head recognition, nozzle guidance, pressure control, and result calculation. With a typical test cycle of 10 to 15 seconds, the system helps laboratories achieve consistent results while reducing manual calculations and operator input.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFully Automatic Test Cycle: Specimen clamping, air evacuation, pressure stabilization, measurement, and result calculation are completed automatically, delivering test results in approximately 10 to 15 seconds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePneumatic Clamping Arm: Provides consistent sealing pressure across each specimen to help minimize edge leakage and variations caused by manual clamping.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e7-Inch PLC Touchscreen: Displays live airflow, pressure, and air permeability readings through an intuitive interface with functions for zeroing, manual operation, calibration, and test setup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAutomatic Test Head Recognition: Detects the installed test plate and automatically applies the corresponding test area during calculations, helping reduce setup and reporting errors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNozzle Change Prompting: Identifies when airflow falls outside the accurate operating range of the installed orifice and indicates the appropriate nozzle for the test.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTen Interchangeable Nozzles: Includes nozzle bores from 0.8 mm to 16 mm, providing measurement flexibility for materials ranging from dense coated fabrics to open filter media.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSix Test Areas: Supports 5, 20, 50, and 100 cm² test areas, plus Ø50 mm and Ø70 mm test heads to accommodate different test methods and material specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSeven Built-In Measurement Units: Displays results in mm\/s, m³\/m²\/min, cm³\/cm²\/s, m³\/m²\/h, L\/dm²\/min, L\/m²\/s, and cfm, supporting different laboratory reporting requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSelf-Cleaning Variable-Hole Test Plate: Helps remove lint and fiber debris between tests while maintaining a consistent effective open area for reliable measurements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-Precision Differential Pressure Sensing: Dedicated pressure sensors monitor the specimen and nozzle pressure drops independently, supporting measurement accuracy of ±2%.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStatistical Result Analysis: Automatically calculates and displays maximum, minimum, and mean air permeability values across a series of specimens without requiring external spreadsheet calculations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated Thermal Printer: Produces an immediate printed record of test results for batch documentation, quality control, and laboratory records.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRS232C Data Interface: Transfers stored test data to a PC or LIMS for electronic archiving, reporting, and trend analysis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePC Control on QualiPermatest™ II: Dedicated software provides recipe storage, extended reporting, and centralized data management, offering additional control for laboratories that require PC-based operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTheory and Method\u003c\/h2\u003e\n\u003cp\u003eAir permeability refers to the amount of air that passes perpendicularly through a defined area of material under a controlled pressure differential. Fabrics and other porous materials contain interconnected pores, so airflow is influenced by factors such as pore structure, material thickness, fiber arrangement, density, and surface finish. The resulting measurement represents the bulk air transport characteristics of the material and can be expressed as face velocity in mm\/s or as a volumetric airflow rate per unit area.\u003c\/p\u003e\n\u003cp\u003eDuring testing, the QualiPermatest™ clamps the specimen securely over a selected circular test head while a vacuum pump draws air through the material. Airflow increases until the differential pressure sensor reaches the value specified by the applicable test method. Typical pressure differentials include 100 Pa for ISO 9237 and 125 Pa for ASTM D737. The closed-loop pressure control system maintains the selected differential pressure, with operation available up to 1,000 Pa, while a separate sensor measures the pressure drop across the calibrated nozzle.\u003c\/p\u003e\n\u003cp\u003eThe calibrated nozzle functions as an orifice flowmeter, allowing airflow to be determined from the pressure drop across the orifice. Proper nozzle selection is important for maintaining measurement accuracy because each nozzle provides its most reliable readings within a specific flow range.\u003c\/p\u003e\n\u003cp\u003eThe QualiPermatest™ Series includes 10 interchangeable nozzles with bore sizes from 0.8 mm to 16 mm, covering applications ranging from open scrims and porous materials to dense coated fabrics. When airflow moves outside the recommended operating range of the installed nozzle, the system prompts the operator to select a more suitable nozzle.\u003c\/p\u003e\n\u003cp\u003eOnce the airflow and pressure conditions are established, the controller calculates air permeability by dividing the measured airflow by the effective test area. The result is then converted to the selected measurement unit for display and reporting. Different test head sizes, including 5 cm² and 100 cm², can be selected according to the applicable standard or material specification while maintaining the same fundamental measurement principle.\u003c\/p\u003e\n\u003ch2\u003eAutomatic Air Permeability Tester - QualiPermatest™ Series Technical Specifications\u003c\/h2\u003e\n\u003ctable class=\"table\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eQualiPermatest™ I\u003c\/th\u003e\n\u003cth\u003eQualiPermatest™ II\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperation and Display\u003c\/td\u003e\n\u003ctd\u003ePLC + touch screen\u003c\/td\u003e\n\u003ctd\u003ePLC + touch screen + PC control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Method\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Time\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e10 to 15 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermeability Range\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e0.1 to 12,000 mm\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasuring Error\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e≤ ±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNozzle Pressure Difference\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e4,000 Pa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecimen Pressure Difference\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e1,000 Pa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasuring Units\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003emm\/s, m³\/m²\/min, cm³\/cm²\/s, m³\/m²\/h, L\/dm²\/min, L\/m²\/s, cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Areas\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e5 cm², 20 cm², 50 cm², 100 cm², Ø50 mm (≈19.6 cm²), Ø70 mm (≈38.3 cm²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Specimen Thickness\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Port\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eRS232C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eAC 220 V, 50\/60 Hz, 2 kW (110V is also available)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e1,020 × 460 × 1,016 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e93 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNozzle Set\u003c\/h3\u003e\n\u003ctable class=\"table\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eNozzle Number\u003c\/th\u003e\n\u003cth\u003e0\u003c\/th\u003e\n\u003cth\u003e1\u003c\/th\u003e\n\u003cth\u003e2\u003c\/th\u003e\n\u003cth\u003e3\u003c\/th\u003e\n\u003cth\u003e4\u003c\/th\u003e\n\u003cth\u003e5\u003c\/th\u003e\n\u003cth\u003e6\u003c\/th\u003e\n\u003cth\u003e7\u003c\/th\u003e\n\u003cth\u003e8\u003c\/th\u003e\n\u003cth\u003e9\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBore Diameter (mm)\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eStandard Accessories\u003c\/h3\u003e\n\u003ctable class=\"table\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003cth\u003eQualiPermatest™ I\u003c\/th\u003e\n\u003cth\u003eQualiPermatest™ II\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 cm² test plate and fixture\u003c\/td\u003e\n\u003ctd\u003e1 set\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e38.3 cm² test plate and fixture\u003c\/td\u003e\n\u003ctd\u003e1 set\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard calibration plate\u003c\/td\u003e\n\u003ctd\u003e1 set\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNozzle set\u003c\/td\u003e\n\u003ctd\u003e1 set\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower cord\u003c\/td\u003e\n\u003ctd\u003e1 pc\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating software\u003c\/td\u003e\n\u003ctd\u003e1 pc\u003c\/td\u003e\n\u003ctd\u003eNot applicable\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePC connection cable\u003c\/td\u003e\n\u003ctd\u003e1 pc\u003c\/td\u003e\n\u003ctd\u003eNot applicable\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOptional Accessories\u003c\/h3\u003e\n\u003ctable class=\"table\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eQualiPermatest™ I\u003c\/th\u003e\n\u003cth\u003eQualiPermatest™ II\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional test plates and fixtures\u003c\/td\u003e\n\u003ctd\u003eOptional\u003c\/td\u003e\n\u003ctd\u003eOptional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir compressor\u003c\/td\u003e\n\u003ctd\u003eOptional\u003c\/td\u003e\n\u003ctd\u003eOptional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComputer\u003c\/td\u003e\n\u003ctd\u003eNot applicable\u003c\/td\u003e\n\u003ctd\u003eOptional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Qualitest USA LC","offers":[{"title":"Default Title","offer_id":52857685410103,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/automatic-air-permeability-tester1093977970.webp?v=1786978711"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/collections\/air-permeability-testers189180305.webp?v=1786977880","url":"https:\/\/qualitest.us\/pt\/collections\/air-permeability-tester.oembed","provider":"Qualitest USA LC","version":"1.0","type":"link"}