Waterproof neoprene mask useful against pollution, dust, particles, pollen, PM2.5. Equipped with three filters (one fixed to the mask and two spare ones). Each filter is equipped with 5 layers of protection: Non-woven fabric layer; to block larger particles, layer with activated carbon; to block chemicals and pollution, two layers of cotton; to block the micro particles, non-woven fabric layer; soft layer in contact with the face for greater comfort. The filters are easily replaceable and it is possible to buy the Set of 3 replacement filters (Code A515). The mask is equipped with holes and ventilation valves, adjustable nose clip and velcro closure, comfortable and practical, to wear it on and off quickly.