IQAir Mask redefines what wearing a protective KN95/FFP2 mask should feel like. Engineered to not only provide superior reduction for a wide range of airborne pollutants, but also designed to provide the most comfortable wearing experience ever. Valveless, medical-grade, all-day protection KN95-certified air pollution mask filters 95% of particles down to 0.3 microns, PM2.5, PM1, PM10, and other common particulates. FREE Fast Delivery | Same Day Shipping