Microparticle Stopper Mask
:dc 3D style Mask
The filtration for most melt brown mask will be decrease from time to time, that people not able to know what is the protective of the mask they are wearing, :dc mask use nano membrane as filter, the filtration rate would not be decreased after use, people always got enough protection. :dc mask not only provide medical mask protection, but also protect you from aerosol particle, its a N95 grade total solution mask, and provide you both high efficiency filtration and breathy comfort.

Melt brown mask is disposable, that also crease lot trash and become a big issue for the environment. :dc mask is washable and re usable, wear can even sprayed with 75-95% alcohol for disinfection, and wash by clean water, which greatly reduces garbage pollution.
Video
https://www.youtube.com/watch?v=7y7gRb6DfXg&list=PLIfjzIYF4GfvSZzqqRvqySbpFeqsXj06o&index=13
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