Dual filter (Pre filter + HEPA filter), Pre filter that effectively prevent large amounts of dust, hair and other large pollutants, while protecting the HEPA filters are from being clogged by bigger pollutants. The efficiency of the HEPA filter is up to 99%, and the outdoor air is cleaned and continuously distributed into the room.
Easy maintenance
EPP foaming: EPP foam with light weight, environmental friendly, good elasticity, aseismic compression, good flexibility, with no water absorption.Heat resistant (-40-130 degree), non-toxic, and 100% recyclable.