The shell format with robust inner shell 3M 8833 dust protective mask FFP3 with valve adapts perfectly to face various morphologies, and retains its shape throughout use. Performance of a mask FFP3: Sandblasting, dismantling, grinding, cutting, drilling: stainless steel, antifouling varnish resins, reinforced plastics (carbon fiber / glass). Construction, maintenance: projection (concrete dust) plastering mortar application, laying foundations, earthworks, underpinning work Allergens, Biological hazards: mold, fungi, bacteria and viruses, tuberculosis. Agriculture, forestry: handling dead animals, animal feed, cleaning barns, harvesters, cutting hay, compost, harvest. Metalworking, foundry: electroplating, finishing, grooving, drilling, riveting, machining, cutting oxyacetylene, molten metal handling, foundries. Cleaning, removal of waste: waste removal, asbestos during maintenance work (For a brief exposure in concentration less than or equal to 1 fiber / cm3 / hour Mines, quarries. Pumping, dredging, cleaning, cutting, sawing , replacement filters Other industrial applications. rubber, plastic processing, pottery, paper converting wood, active principle, pottery, ceramics. Features: Shape: Shell protection level: FFP3 limits: Up to 50 x WEL for particles mask typology: with valve Protects against: dust / mist Standards: EN149: 2001 + A1: 2009 FFP3 RD Marking: expendable risk: water and oil mist, fine dust Benefits: the materials were chosen for their extreme comfort and durability. the nose piece fits quickly and easily around the nose for comfort. sturdy outer shell. the hull design offers increased durability. Cool Flow exhalation valve reduces heat build up to increase worker comfort even in hot and humid conditions. The filter media 3M T Electret facilitates breathing through the mask and provides a more comfortable protection. The extra soft padded lining provides comfort for workers. Improves sealing and comfort. Can be cleaned if the mask is used for a longer duration (cleaning wipes 3M T 105). Flanges with color code facilitates the identification of the level of protection. Code red: FFP3 level of protection in accordance with EN 149: 2001 + A1: 2009. Tips: The user must have received prior training in the proper use of the product. This product does not protect the wearer against gases, vapors, spray solvents encountered during operations of paintings or in atmospheres containing less than 19.5% oxygen. Use only in properly ventilated areas and the oxygen content is sufficient for life. Do not use when concentrations of contaminants are immediately dangerous to life. Leave immediately if: Breathing becomes difficult, Dizziness or other distress occurs. Discard and replace the mask if it is damaged or if the breathing resistance becomes excessive. Never modify or "tinker" this device. Failure to observe the instructions and precautions for use of this product, as well as the failure of continuous wear the mask instructions for the entire period of exposure to the contaminant may decrease the effectiveness of the product and affect health user, exposing it to serious or putting life threatening disorders.