This negative ion air purifier air purifier with highest output - up to 20 million negative ions/sec, filterless mobile Ionizer & travel purifier clean : pollutants, allergens, mold,odors,etc Efficient Purification: Tens of millions of negative ions can effectively clean the indoor polluted air and harmful substances, such as secondhand smoke etc. Economical: filter-free. Never worry about whether your air purifier filter is almost exhausted or the trouble of buying and replacing expensive air filters. The ion-box's filter-free technology purifies your air without any expensive maintenance or any cleaning you need to breathe easily. Silent operation: No noisy fans or motors, no electromagnetic radiation. You can enjoy fresh air and safely fall into sleep. Easy to Use: This pluggable air purifier will take effect automatically after plug in. It is a perfect gift for family, friends, and office mates. Plug Type: US Plug,it applies to Canada, India, Japan, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. / EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. / UK plug,it applies to Malaysia, the United Kingdom and so on. Specifications: Voltage: AC110V / AC220V Power:2W Power Mode:direct plug-in Application:bedroom,kitchen,bathroom,ofice, bathroom ,etc. Colour: As shown Material: ABS Size: 86 * 56 * 26mm Package Contents: 1 * air purifier 1 * instruction manual Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.