Product features: CADR 205m³/h (CFM 121) MAX effective area 22㎡ Noise ≤ 59dB Filter Type: HEPA & Carbon compound filter Ionizer Auto model Sleep Model Filter replacement alert Dust Sensor 4 fan speeds Timer Remote control 3-color air quality display( red, green, blue) HEPA dust removal rate 99.97% Bacteria removal rate 99.82%