Let You Breathe Healthily This air necklace around the neck bring you forest-like clean and fresh air like creating an invisible shield protect you from terrible smell. No filter needed and ultra quiet operation. Wear it when youu2019re in the office travelling by airplane/ train sports events or some other public areas with poor air quality.High-efficiency Ionic Filter Release more than 20000000 ions per second through the carbon fiber brush these contributing ions will combine with pollutants and other unhealthy particles due to its electrostatic charge. High effectively purifying the surrounding air and pushing harmful substances away from you.From Home Size To Wearable Size Instead of large size air filter only for indoor this small air necklace is lightweight and portable comes with a lanyard so that you can wear it to anywhere. An innovative way to give you all-around protection.Long Working Time Built-in rechargeable battery 2 hours fully charge supports about 48 hours working. USB charging port can be charged by pc laptop power charger adapter car.Great Choice The air necklace for travel with sleek and cute design easy-matching with daily outfits. Let you enjoy healthy and smooth breathing at anytime great for flu season or people who is sensitive to smell. A creative and useful gift for kids friends mom dad.