PM2.5 Activated Carbon Filters for Face Masks (Pack of 10)
This pack of ten PM2.5 filters use activated charcoal to give your face mask even more filtering power! It fits easily into your BOCO Gear Face Mask and increases the filtering out of germs, exhaust, pollutants, and other harmful substance.
Each filter has 5 layers and is effective for 40 hours of use.
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