What does HEPA stand for?Updated 7 months ago
"HEPA" stands for High-Efficiency Particulate Air filter. HEPA air purifiers push air through a filter made of fine, dense fibers with a fan. To qualify as a HEPA filter, a mesh filter has to be able to filter particles that are 0.3 micrometers or larger in diameter. HEPA filters can easily remove smoke, dust, dander, pollen, and other particles from the air.