What is a HEPA filter? | US EPA - U.S. Environmental ...
WEBSep 4, 2024 · HEPA is a type of pleated mechanical air filter. It is an acronym for "high efficiency particulate air [filter]" (as officially defined by the U.S. Dept. of Energy).This type of air filter can theoretically remove at least 99.97% of dust, pollen, mold, bacteria, and any airborne particles with a size of 0.3 microns (µm).
HEPA - Wikipedia
WEBHEPA (/ ˈ h ɛ p ə /, high-efficiency particulate air) filter, [1] also known as high-efficiency particulate absorbing filter [citation needed] and high-efficiency particulate arrestance filter, [2] is an efficiency standard of air filters.
What is a HEPA Filter and How Does it Work? – Smart Air
WEBApr 17, 2024 · HEPA filters are high efficiency filters that typically capture over 99.5% of all particulate pollution. They’re made from either plastic (PP+PET) or fiberglass, and can capture things like pollen, viruses, bacteria, mold and PM2.5. Diffusion also means they are highly effective at capturing nanoparticles too.
9 of the Best HEPA Air Purifiers & How to Choose - Healthline
WEBJul 30, 2021 · Ultra-HEPA filters or ULPA filters. These can trap up to 99.999 percent of particles 0.3 microns or smaller.; Electrostatic filters. These trap particles using a small static charge, which help ...
What is a HEPA filter and its benefits? - Dyson
WEBHEPA (High Efficiency Particulate Air) is an air filter efficiency standard – a certification of a filter’s performance. HEPA is defined as a filter that captures 99.97 per cent of particles down to 0.3 microns and is tested using a standard by an organisation called the IEST. Another organisation called ISO defines HEPA as filters that ...
HEPA Air Purifier Filters - Lowe's
WEB1.59-in W x 17.05-in H x 15.08-in L Air Purifier 4-Fan Anti-Allergen HEPA Filter Hepa Air Purifier Filter. Find My Store. for pricing and availability. 4.8. 6. Compare.