LANDOU Reusable Fabric Face Mask with PM2.5 Filters & External Valve (Adult, Gray)

Breathe easier when wearing this Reusable Fabric Face Mask with PM2.5 Filters & External Valve in gray from CASEPH. This mask is sized for adults and its replaceable PM2.5 activated-carbon filter is engineered to minimize the inhalation of small particles. An ideal mask for areas with elevated air pollution, smoke, dust, pollen, and fumes. The fabric of the mask itself is also made to be breathable and includes a built-in dual filter valve. The fabric and valve greatly improve ventilation without sacrificing filtration. This helps to make the mask much more comfortable in hot and humid weather or while exercising. Please note that the PM2.5 filter is not reusable and must be replaced every week. Please note that B&H makes no claims regarding the medical effectiveness of this product.