The Philips Air Purifier’s multi-layer filtration system is one reason why it’s so effective. First, a pre-filter removes large particles, then an active carbon filter removes odors and VOCs. Finally, a HEPA filter removes ultrafine particles as small as 0.003um, including PM2.5, dust, dust mites, common allergens, bacteria and viruses.* The result is a superior filtration system that provides cleaner air.
* From air that passes through the filter.