Tag: HEPA
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In-depth analysis of the PTFE media used in HEPA Filters
What is PTFE and how is it related to HEPA Filtration? Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. It’s best known by the brand name Teflon, given by the DuPont company, who were the original manufacturers. PTFE is most famous for its use in non-stick cookware, but it has a…
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EN1822 Standard – High Efficiency air filters (HEPA and ULPA)
EN 1822 classifies EPA, HEPA and ULPA filters by their efficiency at the most penetrating particle size (MPPS). Part 1 of the standard, EN 1822-1:2019, carries the classification table: eight classes from E10 to U17. An H13 filter has to reach 99.95% integral efficiency at MPPS, an H14 filter 99.995%. Below is the full table,…
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Understanding ISO 29463 Standard – High efficiency filters and filter media for removing particles from air
ISO 29463 is a series of international standards developed by the International Organization for Standardization (ISO) to address the testing, classification, and marking of high efficiency air filters. Published as a common language for testing and classifying high efficiency filters worldwide, including Europe and America, the ISO 29463 standard aims to harmonize and streamline filtration…
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What is HEPA Filter?
A High Efficiency Particulate Air (HEPA) filter is a type of air filter designed to remove fine airborne particles, such asvirus, bacteria, and mold spores, from the air. These filters are commonly used in various applications, including residential and commercial buildings, industrial cleanrooms, and medical facilities, to improve indoor air quality and protect sensitive equipment…