Room Air Purifiers up to 430sqf, 11w, auto function, need no filters or drugs, remote contral, time-fixing,fashionable design Room Air PurifiersUp to ... 40 sqms(430 sqf), 11w, auto function, need no filters or drugs, remote contral ... : the cleaning rate is 200 times quicker than other air purifier High light LED display12 hours time-fixing and non ...