This air fresher creats up to 120millon / cm³ negative lons
Helps to eliminate PM2.5 air pollutants, smoke, odors, dust,etc.
Silent operation and easy to use
No extra filter needed
If you want to have a better immune system in the flu season, stop allergies from bothering you, boost your metabolism, this portable device is a reasonable option.
Product Specification:
Name: Air Purifier Necklace
Working voltage: DC5V
Power: Less than 1w
Negative ion concentration: 80-120millon / cm³
Battery capacity: 250mAh
Charging time:1h
Working time:24-30h
Weight: 30g
Colour:White / pink / blue / black
Material:ABS
Size:4 x 7.5cm

Package Contents:
1 * air purifier
1 * usb cable
1 * lanyard

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.