This electric mask can effectively prevent most viruses and harmful gases, pollen, etc. from invading your body. This mask uses 2 lithium batteries to run, you can use it for a long time, this mask has a service life of up to 20,000 hours. The design structure of the electric mask is very reasonable, and it fits closer to the face, which is suitable for the face structure. It comes with a breathing valve, which blocks bacteria and pollen without affecting your breathing, which is very convenient
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