YUEMIDAMY 3 in 1 Prime Mini Air Purifier with HEPA Filter - Portable Quiet Mini Air Purifier Personal Desktop lonizer Air Cleaner,for Home, Work, Office for Allergies, Smoke, Dust, Pollen and Pet Dand PORTABLE AND COMPACT:Size:Diameter3.6in*Height6.7in, Weight: 270 grams. It can cover area of about 11-25 square meter. The stylish and compact design mean it looks great anywhere and fits almost any place.The low power consumption and low noise make it affordable to run and quiet. CIRCULATE AND FRESHEN YOUR AIR:The 3-in-1 purification filter applies the fine preliminary layer, the true HEPA layer and the activated carbon layer reducing unreleased odors effectively,The odorous air gets sucked into bottom of the air purifier, filtered through the mufti-layer filter, then ejected out of the top of the air purifier, filling your living space with cleaner, fresher-smelling air. EASY TO OPERATE:The product has only one button, which is both a switch button and a function button, which is easy to operate.Press the button and the purifier starts and automatically turns on sleep mode;Press button twice,change for comfort mode;Press button again,change for Spray mode.As long as the power is maintained, the air purifier will always turn on and keep fresh air. FOR LARGE SPACES UP TO 270 SQ FT:Big enough to purify the air in spaces as large as 270 square feet, our clean air purifier is a perfect pick for the nursery, a child's bedroom, the living room, a classroom,car or office. Our so confident you'll enjoy the benefits of our premium air cleaner. SATISFACTORY GIFT:Negative ions bring high efficiency air filtraction, it also is good for emotion lifting, no ozone. Perfect gift for father, mother, office mates,Family and friends.