RZ Mask M2 Mesh Air Filtration Face Protection Dust Mask with 99.9% Effective Carbon Filters for Woodworking, Construction, Medium, 1 pack, Black;

For woodworkers, the basic paper dust masks with rubber band straps have an annoying drawback: every time you exhale, hot, moist air is forced out of the gaps around the bridge of your nose, and your safety glasses quickly become fogged. RZ M2 Mesh Masks circumvent that problem with dual exhalation valves that direct air down and outward, away from your safety glasses. M2 masks ship standard with replaceable high-performance F1 filters that screen out particles down to 0.1 micron in size, and include an active carbon element. The mesh material is lightweight, comfortable against the skin, and allows cooling air to circulate in areas that don't require filtration, such as the back of your neck. As we all know, a mask only benefits you if you wear it, and with no rubber bands to tangle in your hair or chafe against your neck, you won't hesitate to wear this one. Features: Mesh material is lightweight, breathable and durable Replaceable filters and washable mesh maximize the life of the mask Dual one-way discharge valves reduce condensation on safety goggles Adjustable nose clip also helps to prevent fogging Adjustable velcro strap provides a comfortable fit—not too tight and not too loose Optional HEPA filters are available separately What Size Should I Buy? To determine the correct mask size for your facial structure, simply measure the distance from the bridge of your nose to just under your chin and match it to the sizes below. Use a mirror, or have a friend assist you. 4-1/2'' to 5-1/2'': Use Extra-Large 4'' to 4-1/2'': Use Large/Regular 3-1/2'' to 4'': Use Small/Youth