Comfort when worn for exercise, movement or extended wear Flexible elastic strap system with quick-release buckles Best-in-class filtration and comfort with 360-degree seal Breathable mesh material û cool and comfortable Filters remove up to 99.9% of particulates down to .1 micron in size û surpassing the N95 testing standard One-way discharge valves eliminate moisture buildup Adjustable nose clip eliminates any fogging of your glasses Washable and reusable. MASK M2.5 RED LG