Moldex N95 Medium. Large Particulate Disposable Respirator has molded nose bridge with soft foam nose cushion allowing all day comfort with added carbon layer to help filter out nuisance levels of ozone or organic vapor odors. Respirator comes with exhalation valve that reduces hot air build up and Dura-Mesh shell which protects filter media and resists collapse even in heat and humidity so the respirator holds its shape longer. Respirator is NIOSH certified under 42CFR84 regulations to have a filter efficiency level of 95% or greater against particulate aerosols free of oil. Respirator is 100% PVC free that includes a face piece which is naturally contoured without pressure points and meets heat and flame resistance in accordance with ANSI ISEA 110-2003 Section 7.11.1. The result is fewer respirators used and lowers costs. It is applicable in 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. Welding and foundry operations, lab settings, agriculture, chemical processing, printing, food processing, paint and varnish manufacturing, waste processing and sewage treatment. Respirator is sold as 10 per bag.