... 94.01% and 95.45%3. work one hour later , Ozone is 0.012mg/m3In home enjoy ... need6 kinds of mode: automatic, volume(high,mid,low,sleep) swing,timer, nanometer activity ion, humidification and air ... sounds working. 3 Automatic function design, display air quality in the room automatic 4 LED display, working station ... function ,keep humidification in the room High quality air purifier manufacturers