Disposable masks present an economical means to keep dust and particulates from entering your airways on the job site. Here you will find great respiratory protection from Protective Industrial Products, whether it be latex free face masks, N95 respirators with a valve, nuisance dust masks or a variety of others.
New OSHA regulations on exposure to silica dust require respirators when engineering controls do not adequately limit worker's permissible exposure limit (PEL) for respirable crystalline silica to 50 micrograms per cubic meter of air, averaged over an 8-hour shift.
What is Respirable Crystalline Silica?
Crystalline silica is a common mineral found in many naturally occurring and man-made materials used at construction sites. Materials like sand, concrete, brick, block, stone and mortar contain crystalline silica. Amorphous silica, such as silica gel, is not crystalline silica.
Respirable crystalline silica very small particles typically at least 100 times smaller than ordinary sand found on beaches or playgrounds is generated by high-energy operations like cutting, sawing, grinding, drilling and crushing stone, rock, concrete, brick, block and mortar, or when abrasive blasting with sand.