One size mask with 2 slots for filters, ideal for protection against dust, organic and inorganic gases, acids and gas and dust combinations. Its optimal use is in woodworking, stone and marble sculpture, painting and spraying, sanding, DIY, pesticides, smoke, welding, etc. Thanks to the soft TPE material, these masks fit well to the contour of the face, while being supported by two rigid filters. The inhalation/exhalation valve is placed in a highly durable plastic base and is protected by a cover. Filters are not included.