Moldex¨ EZ-ON¨ N95 Small Particulate Disposable Respirator comes with Dura-Mesh¨ shell which is collapse-resistant even in heat or humidity, so it holds it shape longer. Results of using the mask are fewer respirators and hence lower costs. The one strap with Flexwing¨ and head harness provides an easier and more comfortable fit than two straps while eliminating the struggle of putting on. taking off your respirator. This easy on, easy off respirator is the first and only NIOSH N95 approved adjustable one strap respirator that provides a quick fix. Disposable respirator can be used 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. The Dura-mesh¨ shells surround shield and protect the filter media for durability while keeping it clean. This respirator is NIOSH certified and has a filter efficiency level of 95% or greater against non-oil based particulate aerosols.