Air purifier with multi-stages cleanings: washable pre-filter, HEPA filterwashable pre-filter traps large particles and pollutants and protect other filters HEPA filter removes dust, pollen and smoke as small as 0.3 micron Simple manual switch: high, medium, low for day and night useAir flow: 90cfmCADR(smoke)>70cfm Maximum power<30WEnergy star compliant Noise: < 45dB Unit size: (L) 175 x (W) 250 x (H) 425mm Unit net weight: 4kg Stuffing quantity:<ul> 40-foot HFCL container: 2,556 units 40-foot FCL container: 2,274 units 20-foot FCL container: 1,044 units</ul>