Package comes with Spare Filters. For Professional use. One Size Fits All. Unisex. Reusable. Fitst to any face with elastic bands. Dust Mask. Washable. Brand New. Easy for use. For Smoke and Dust In a polluted environment. Extremely effective for ground coats, painters, plasterboard, insulation, welders, auto painters, locksmiths, masonry, carpenters, granite, tiles and many others. Respirator Aerosols Welding Hazardous materials Sandblasting machines Construction Pharmaceutical industry