MOLDEX 2700 Series N95 Particulate Respirator - HandyStrap® with buckle allows mask to hang down around neck when not in use. Cloth strap feels cool and comfortable against the skin. Ventex® valve lets the hot air out faster so workers stay cooler. Contoured nose bridge with soft foam nose flange allows all-day comfort. Dura-Mesh® shell resists collapsing so mask lasts longer. Available in two sizes to fit most workers. NIOSH certified to have a filter efficiency of 95% or greater against particulates free of oil. Applications: Hot, humid and dusty environments such as welding, soldering and brazing, grinding, sanding, sweeping, bagging, stone quarrying, metal machining, cement, underground mining, polishing, buffing, lime, poultry and textiles. No oils present.