... experiment; Obliterate dust.For the room dust ,we select HEPA (high efficiency particulate air filter) as the best HEPA material which internationally ... PMEL , medicine produce, Atomic Research and die Operation which need high clean place. It can clean 99.7% dust ,and ... set the function you need6 kinds of mode: automatic, volume(high,mid,low,sleep) swing,timer, nanometer activity ion, humidification ...