... area:80sq.m Hot-sell Hepa anion air purifier with 500mg ozone and remote control 1.ozone purifier2.anoin purifier3.CE,ROHS ... machine. Micro computer control, four-lay filter and over oxygen device, with high level, mid-level and low level wind, timing can be set ... 1hour,2hour,4hour and 8hour, Four-lay filter with triple ...