Air Purifier Necklace Mini Portable USB Air Cleaner Negative Ion Generator Low Noise Necklace Purifying Generator

Features:
Fashionable and particular miniature wearable air purifier.
Advanced mute technology, low noise during the whole process, safe, energy saving and environmental protection.
Small and light volume, built-in lithium battery, easy to charge.
Hanging neck is easy to carry and can purify the air in one cubic meter of nose area.
No consumables for life, one-time investment to save costs.
Actively neutralize and remove PM2.5, smoke, pollen, dust, second-hand smoke and other polluted micro-particulate matter.
Release high concentration of negative oxygen ions to make our breathing area more comfortable and fresh air.
Fashion accessories with different styles.