Mini Wearable Smoke Odor Removal Portable Negative Ion Necklace for Car black

Feature: 1. THREE LAYERS PROTECTION: Negative ions to the human body as the center outward continuous diffusion, respectively, the formation of absorption layer, stability layer, ion diffusion layer three circles class circle protection belt. 2. HEALTH PROTECTION: Air purifier necklace can purify a variety of air pollution, air pollutants are likely to cause human health problems. 3. PURIFY THE AIR: Necklace purifier to the air release high concentration of negative oxygen ions all round purification 1m³ breathing space, active removal of PM2.5, aerosols and other air pollutants. 4. NO CONSUMABLES NEEDED: Wearable air purifier purifies the air continuously, leaving behind the traditional purifier regular replacement maintenance trouble. 5.