Most respirators are 95% efficient in trapping airborne non-oil-containing particulates (like saw or sanding dust). This N100 3M respirator is 99.97% efficient ? that?s almost the 99.99% efficiency provided by HEPA filters! That means that individuals extremely sensitive to dust may now be able to enjoy woodworking activities. (If you have respiratory ailments, be sure to ask your doctor whether an N100 filter will provide sufficient protection for you). Comfort is enhanced by the full-foam face flange, adjustable nose clip and an integral valve that allows humid exhaled air to escape the mask quickly. When breaking for lunch, simply loosen the stretchable strap and let the respirator hang around your neck, ready to be repositioned when you return to an environment requiring protection. This particulate mask is certified under NIOSH 42CFR84 to have a filter efficiency of 99.97% or greater against particulate aerosols free of oil ? NIOSH approved. Qty. 1.
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