Moldex¨ N95 Medium. Large Particulate Disposable Respirator has added carbon layer that helps to relieve workers of nuisance levels of ozone and organic vapor odors. It comes with Handystrap¨ that allows mask to conveniently hang down around the neck, exclusive Ventex¨ valve that lets the hot air out faster so breathing resistance is reduced and Dura-Mesh¨ shell which protects filter media and resists collapse so the respirator holds its shape longer. It is ideal for workers at field sites and provides each worker with a personal supply of respirators. Respirator meets heat and flame resistance in accordance with ANSI / ISEA 110-2003 Section 7.11.1 and NIOSH 42CFR84 standard. It features separate compartment permits storage of a used mask during breaks for preventing premature disposal of masks. 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 4 per pack.