... to 60 m2 4. 5 levels of wind speed LY-868A Floor Air Purifier:CADR: 300CFM (510m ... the air quality2,Various operation mode: manual , auto, sleep, wind speed can be adjusted according to the air quality ... under auto mode.3,5 levels of wind speed, applicable for different room area ... at lowest speed, CADR can reach to 510 m3/h5,HEPA has life timer function, auto notification of ...