Respiratory Protection for Workers

More specifically, there are different approaches to respiratory protection. These include the following: (1) engineering controls that eliminate or reduce exposures to toxic agents; (2) administrative controls (i.e., work rules); and (3) personal protective equipment (e.g., respirators) (Cashman & Murray, 1995, pp. 168-171). The most preferable solution to any respiratory protection problem usually involves engineering. If at all possible, employers should try to enhance workplace safety by either removing toxic substances, or substituting them with agents of lesser toxicity. In addition, modifying the work process can also be an economical way to abate a respiratory hazard. The cost of protective equipment can be considerable. Moreover, most such implements require periodic replacement. Medical surveillance of worke

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l such as cotton, felt, or paper. In contrast, cartridge-type respirators eliminate gases and vapors through chemical adsorption. These sorbent materials generally consist of some granular or porous material with a large surface area. Agents commonly employed include activated carbon, activated alumina, activated silica gel, and soda lime. Although the cartridges are usually designed for protection against specific compounds, the "spectrum of protection" can be broadened through the use of various chemically reactive additives (Arad, 1991, pp. 636-642). For example, activated carbon may be impregnated with such things as iodine, silver, copper, chromium salts, or metal oxides. The functional capacities of such materials are controlled by both the duration and severity of a toxin exposure. Bigger canisters can generally protect against higher contaminant concentrations for longer periods of time (Arad, 1991, pp. 636-642). Cashman & Murray (1995) additionally describes atmosphere-supplying respirators. Such systems are typically used in low oxygen environments or extremely dangerous conditions. The two major equipment subgroups include the airline respirator and the self-contained breathing apparatus (SCBA). Airline respi
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Approximate Word count = 2184
Approximate Pages = 9 (250 words per page)

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