Multi-layer Negative Ion Desktop Air Purifier, Ultraviolet + anion + compound filter. Size:11 2/5″ X 15 1/3″.Have CE FCC ROSH EPA certificate. With 7 colors LED lamp. It can disinfect the air by removing the stink, smoke, dust, and PM2.5 pollutants, benzene, and formaldehyde, as well as killing harmful bacteria and viruses to make the air healthier to breathe. Improve the air quality in your home, or in the office with this hard-working air purifier. Add your organizational or business logo or emblem to this device to create a valuable branded promotion that will really clear the air between you and your customers and supporters.