Reusable Washable Face Mask Breathing Valves Activated Carbon 5-Layer Filters  95% PM2.5 filtered 

Top rated US seller, 3-5 days delivery. 

You can buy with confidence,100% satisfaction or money back in 30 days free trail.

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Specifications:

Mask Materials:  Nylon + Spandex, Reusable & Washable. It can be used > 600 times or for two years.

Filters:  It is 5 layers: Three layers of non-woven fabric, one layer of meltblown cloth, one layer of activated carbon. 

It can filter most virus and PM2.5 particle (>95%)

For the best filtering efficiency, the filter is suggested to change every day.

Package includes:

1x Face Mask

or 

Only 5x Filters