USB Portable Wearable Air Purifier Mini Air Necklace Air Freshener Necklace

Features:
It can effectively purify air polluted by indoor air and indoor harmful substances (such as pollen, dust), second-hand smoke, and even PM2.5 air pollutants
Can improve your mood and sleep.
The sound is very quiet during operation and will not bother you when you work or rest. The operation is very simple, just press the button for two seconds to enjoy the freshs air.
Portable ion air purifiers have no radiation. Negative ions effectively combine the static radiation of TV and computer to form a layer of negative ion protections layer to reduce the damage of radiation to the skin.
This mini air purifier is simple and compact. It can be hung around the neck, hungs in the car, very stylish.
It can be used to create a clean, fine air area in travel, public places or other places with poor air quality. Let the freshs air accompany you.