Respiratory Protection: Atmosphere-Supplying Respirators (Microlearning)


Respirators are generally divided into two groups: air-purifying respirators, or APRs, which filter the outside air, and atmosphere-supplying respirators, or ASRs, which provide the user with a source of clean air. ASRs supply users with breathing air from a source other than the surrounding environment. They are useful for situations where filtering cannot protect against the hazardous atmosphere, such as when there is not enough oxygen in the air, or when there are multiple or unknown hazards to protect against. Learners who successfully complete this module should be able to identify types of atmosphere-supplying respirators and their characteristics, styles and features. For a more complete training experience, see RSP-1.2 Respiratory Protection. This course is presented in English and Spanish.