Nylon fabric is durable, breathable, and comfortable Nylon is the most flexible of all of our mask materials, providing a comfortable and customized fit Best-in-class filtration and comfort with 360-degree seal F1 Filters remove up to 99.9% of particulates down to .1 micron in size One-way discharge valves eliminate moisture buildup Adjustable nose clip eliminates any fogging of your glasses Filter performance independently proven by world-renowned Nelson Laboratories Single-strap hook-and-loop closure Washable and reusable. MASK M2N FLAME XL
