Particulate Respirator KN95 is a disposable particulate respirator that is designed to help provide reliable respiratory protection of at least 95 percent filtration efficiency against certain non-oil based particles. This respirator is designed for use for particles such as those from grinding, sanding, sweeping, sawing, bagging, or other dusty operations. This respirator can also help reduce inhalation exposures to certain airborne biological particles (examples: mold, Bacillus anthracis, Mycobacterium tuberculosis), but cannot eliminate the risk of contracting infection, illness, or disease. HOW TO USE ; STEP 1 Before putting on a mask, clean hands with alcohol-based hand rub or soap and water. Cover mouth and nose with mask and make sure there are no gaps between your face and the mask. This face mask protects your face, nose, mouth, against dust, smoke, ash, pollution and other particulate matter in all weather conditions. It’s soft & super light material does not cause any irritation even after prolonged wearing. The design provided on the mask filters the air properly and allows it to pass through, letting you breathe even while wearing the mask. The Face mask is made up of special fabric to ensure enhanced level of protection from even the smallest particles present in the air. The face mask is great for protecting you from dust, pollution, smoke etc to help you breathe easier and stay germ-free.