... CE,ROHS,FCC,CQCcertification4. ultra static soundFunction of Air Purifier1) Clean the indoor air thoroughly, adhesive dust, particle, hair and ... and generate healthy negative ion to improve the indoor air qualityFeatures of Air Purifier:Adopts the high efficiency filtrate net which ... and peculiar smell in the air to reach higher fresh air output CADRwith the high air current design of purify machine ...