Purifier 1.HEPA filter(99.97%), Activated carbon filter 2.Photocatalyst, UV sterilization 3.Humidify the air ... technologyApplication of UV disinfection physical characteristics, combined with the filter characteristics, according to the principle of the wind, ... bacteria in high-speed air flow.7.Photocatalyst filter Cavernous photocatalyst filter,Intensive pinhole shape to ensure the attachment surface ...