... to 430sqf, 11w, auto function, need no filters or drugs, remote contral, time-fixing,fashionable design Room Air PurifiersUp to ... (430 sqf), 11w, auto function, need no filters or drugs, remote contral, time- fixing Function:A.Destroy any biological ... -computer controlAutomatic sensing and cleaningLower operation cost: no filters, drugs or other parts needed, 3 days` running consumes only 1kilowatt ...