Which organization provides the respirator selection logic used in workplaces?

• A. NIOSH
• B. OSHA
• C. EPA
• D. CDC

Answer: (A)

Respirator selection logic used in workplaces is provided by NIOSH, the National Institute for Occupational Safety and Health. NIOSH develops the respirator approval process and publishes guidance on selecting the right respirator based on the hazard, concentration, and exposure scenario. This guidance helps employers choose respirators that meet performance standards and provide the expected level of protection, often described in terms of assigned protection factors and compatible filters or cartridges. In practice, OSHA regulations require employers to use NIOSH-approved respirators and follow the selection guidance during program development, so the actual standards governing use come from OSHA, but the selection logic itself is defined by NIOSH. The other agencies have different roles: OSHA is the regulatory body enforcing safety rules; EPA handles environmental protection and pesticide-related matters; CDC oversees public health and houses NIOSH. Understanding this distinction helps explain why the respirator types and their approval come from NIOSH, while the legal requirements for implementation are OSHA's domain.