Philips Nano Protect filter

This integrated HEPA and activated carbon filter effectively captures harmful particles as small as 0.003 μm, including PM2.5, allergens, bacteria and viruses. It also absorbs formaldehyde, TVOC and odor, trapping everything in its nano-sized pores. Removal of allergens such as pollen, dust, dust mites and animal skin particles proven by the European Center for Allergy Research Foundation (ECARF). Proven effective in removing up to 99.9% of bacteria and viruses such as H1N1 from Airmid. The integrated HEPA and active carbon filter makes installation easy. The surface area of the active carbon layer is up to 37 football fields. The HEPA layer, equipped with Philips VitaShield technology, is made of ultra-fine non-woven fabric with a surface area of 2.44 m². The performance is more durable.