1:ESP/UV lamp/carbon filter/ anion 2:applied in ... replace nothing E.S.P. particles collector Electro static precipitator (ESP) captures airborne pollutants like pollen, smoke, dust, pet ... dander or any particles as small as 0.01 micronCarbon filter Carbon filter eliminates chemicals such as formaldehyde, ... cover. E.S.P. collector water washable home ESP air purifier with UV,filter,anion,light,