REUSABLE SPORT MASK (RSM) Is a Non-Medical Mask constructed of a strong, lightweight, washable mesh spandex material. It is form-fitting, comfortable, and functional. When equipped with the Replaceable Active Carbon Filter, the RSM provides 5-layer filtration designed to protect against allergens, pollution, dust, and more. This mask is ideal for personal, industrial, and commercial use and is a stylish way to thrive in the mask-mandatory world of social distancing. Each RSM unit includes a set of mask valves and one filter along with the mask itself. Filters should be replaced after 48 hours of use, or 3-5 days of heavy use.