Mask air clo2 for sterilizing, and deodorizing

Designed for sterilizing and deodorizing the room by just attaching the cloths or hanging on the neck. It contains chlorine dioxide which eliminate the disinfecting bacteria, and effective for 1m3, 99% of germs, bacteria and virus will be removed within 120minutes. CLO2 will be slowly released and never exceed 0.017ppm, lasting for 1 month. Good personal protection from colds, influenza and pollen etc. FDA Class 1 Registered Disinfectant. Remark: Not effective in open space on deck, only for indoor use.