This negative ion purifier with highest output - up to 32 million negative ions/sec, filterless mobile Ionizer & travel purifier clean : pollutants, allergens, mold,odors etc. Efficient Purification: Ten of millions of negative ions can effectively clean the indoor polluted and harmful substances, such as secondhand smoke etc. No Need to Change the Filters: Never worry about whether your purifier filter is almost exhausted or the trouble of buying and replacing expensive filters. The ion-box's filter-free technology purifies your 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 and safely fall into sleep. Portable and Easy to Use: This pluggable purifier will take effect automatically after plug in. It is a perfect gift for family, friends, and office mates. Voltage:110V(US Plug) :1W Mode:direct plug-in Application:bedroom,kitchen,bathroom,ofice, bathroom ,etc. Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, Taiwan,the United States, the Philippines and so on. colour:White & Green material:plastic size:60*100*45mm Package Contents: 3* Purifier(US Plug) Only the above package content, other products are not included. Note: Light 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.