XMask with Filter

The xMask is tested with results showing 95% filtering efficiency against particles down to 0.3μm in size. The mask filters the following particles in the air you breathe: PM 0.3-10, dust and other air pollutants Pollen and other allergens Bacteria and other germs Wildfire smoke & cigarettes Adjustable strap Reinforced stitching Removable valves Interchangeable filters Machine washable Comes with 1 filter. 1 new mask with filter