HEPA (High efficiency particulate air Filter), means the filter efficiency reaches 99.97% against 0.3um particle.
Antibacterial HEPA filter is made of a layer of antibacterial non-woven fabric on the surface of HEPA filter, the purification efficiency of ultrafine suspended particles in the air is as high as 99.97%, and the purification efficiency of most microorganisms in the air (E.g.coli, Staphylococcus aureus, mold, etc.) can reach more than 99.9%.