Face Mask Filter Pad

5 layer face mask filter, PM2.5 

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• Best price in the market

• 1st layer: Anti-sticking cloth: dust filtering micron

• 2nd layer: Activated carbon cloth: effectively filters dust & prevent misy haze

• 3rd layer: Activate carbon: Capabilities of filtering automobile exhaust/secondhand smoke

• 4th layer: filter capabilities of small density substance

• 5th layer: Anti sticking cloth: Final layer of filtration 

Note:

Wearing mask for long hours could cause dizziness and somewhat restriction of smooth air flow. Do not wear mask to sleep and when not in crowded environment, take a break and take mask off.