Main features:
✔Effective purifiction: The latest double carbon brush double negative ion generator design uses over 28,000,000 + nano negative ions to effectively remove harmful substances such as floating dust, smoke, formaldehyde and PM2.5 in the air.
✔Easy To Use: Simple press the on/off button to turn it on/off. Portable necklace design, can wear on your neck, hang it on your pocket, bag or desk, stylish and convenient to carry. It is small and easy to take it on the go, help you get rid of second-hand smoke from people around you.
✔Rechargeable: USB charging, low consumption. You will get high quality air and reduce unpleasant smell anytime. And it built-in 250mAh Full Cobalt Lithium Battery, can last for 15 hours after fully charged.
✔No Filter Needed: With this wearable air purifier, you'll never need to worry about the burdensome filters. Without any additional costs, just a quick charge. You will receive a day's worth of high quality air.
Specifications:
Product name: Personal air purifier necklace
Material: ABS
Input voltage: 5V
Input power: 0.1W
Negative ions released: 28millions/cm³
Lifetime: >15 hours
Power Supply：USB
Rated Frequency：50（HZ）
Noise：Lower5（dB）
Battery：250mAh Lithium Battery
Size: 66.7x24.7x16mm/ S shape
Features：Anion Dust Removal, Sterilization and Purification

Packaged Included:
1x Air Purifier Necklace
1 x Lanyard
1x Charging Cable
1x User instruction