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Respiratory protection is important in many occupations involving exposure to gases, vapors, or particles, including biologic agents. This article reviews the types of respiratory protection and the necessity for the proper selection and use of these devices. Respirators have predictable physiological effects, and under conditions of low oxygen levels, improper use of a respirator increases the risk of asphyxiation.
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Martyny et al. (2002) studied this question.
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