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99 percent filter efficiency against ragweed pollen
All-purpose mask helps provide relief from irritating effects of common household and yard dust. Design offers a 99 percent filter efficiency against ragweed pollen. Mask helps reduce spread of germs by filtering out 99 percent of wearer's exhaled airborne bacteria.All Purpose Filter MaskBacteria - (Airbourne)Dust - (Household, Yard)NexcareNoPolyesterRagweed PollenRayon FiberSafety MaskStaple FiberWhitewww.3m.com.
Mask effectively warms and moistens inhaled air to make breathing easier.