HAZWOPER Respirators
Respirators are required when working around hazardous materials that present an inhalation hazard. A respirator is a personal protective device that covers at least the nose and mouth to reduce the amount of contaminated air inhaled by the user. This module will discuss the types of respirators typically used for hazardous waste operations and emergency response.
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Learning Objectives
• Differentiate between air-purifying and air-supplying respirators • Describe the capabilities and limitations of different respirator types • Identify which type of respirator should be used in a given situation • Describe the requirements for wearing a respirator • Describe how to clean, inspect, and store a respirator
Specs
| Course Level | Intermediate |
| Languages | English |
| Compatibility | Audio, Video |
| Based on: | 29 CFR 1910.120 29 CFR 1910.134 |
Key Questions
What are the different types of respirators?
There are two main types of respirators: air-purifying and air-supplying.
What are air-purifying respirators used for?
Air-purifying respirators use filters, cartridges, or canisters to remove contaminants from the air.
What are air-supplying respirators used for?
Air-supplying respirators provide the user with clean, breathable air from an uncontaminated source. In general, they are used for more hazardous atmospheres.
What is a combination respirator?
A combination respirator is an airline respirator with a small escape cylinder so the user can get out of a hazardous atmosphere if something goes wrong with the primary air supply.
How is the right respirator chosen?
Selecting an appropriate respirator requires identifying the potential hazards and work requirements. Hazardous materials and their concentrations must be identified. If the atmosphere is oxygen deficient or immediately dangerous to life or health (IDLH), an SCBA or combination respirator is required. Air-purifying respirators can only be used when airborne hazards are known and concentrations are measured and remain below the protection limits of the respirator.
Sample Video Transcript
Respirators are required for protection when working around hazardous materials that present an inhalation hazard. The type of respirator needed depends on the type and severity of the hazards present. Particulate respirators remove solid particles and mists from the air. Gas masks are used for protection from some gases and vapors, depending on the concentration. SCBAs or combination respirators are needed for IDLH and oxygen-deficient atmospheres. Respirators must be properly maintained so they work properly and provide the expected level of protection.
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