Portable Negative Ion Air Purifier Pendant Necklace with USB Charger
Reduces air contaminants, therefore protecting you from dust, germs, bacteria, virus, etc. It improves respiration, and help you stay focused. It can improve your immune system over time. Improve quality of sleep: Wearing this air purifier necklace to sleep may improve sleep quality overtime as it releases negative ions into your personal environment. Recharge and wear: No noise, does not require any liquid added. It is not only an air purifier, but also a necklace.