... , and smoke-elimination Function: 1) Clean the indoor air thoroughly, adhesive dust, particle, hair and farina effectively. ... is harmful and cancer- easy- caused in the air.4) Increase inner room oxygen content and generate ... healthy negative ion to improve the indoor air qualityFeatures: Adopts the high efficiency filtrate net ... Area: 80m2Timing: 1H , 2H , 4H , 8H 2012 New Air purifier