... aroma diffuser 2.Change scent automatically, remove smoke, clean air, kill virus 3.CE, FCC, ROHS Home Air Purifier, Home Care Air Purifier, Air ... automatically & alternately) Home Air Purifier (can also be used in the car)1). Ionizer, aroma diffuser2). Change scent automatically, ... remove smoke, clean air, kill virus3). CE, FCC, ...