Asbestos Contractor/Supervisor Practice Exam

According to OSHA standards, which of the following statements about powered air purifying respirators is incorrect?

1. They provide protection factors of up to 50

2. They are suitable for chemical exposure

3. Full facepiece models offer higher protection factors

4. They do not require a fit test

The correct answer is: They do not require a fit test

Powered air purifying respirators (PAPRs) are respiratory protection devices that utilize a battery-powered blower to draw air through a filter, providing clean air to the user. Regarding the statement that they do not require a fit test, this is not accurate. Fit testing is crucial for any respiratory protection system used in environments where a worker might be exposed to hazardous airborne contaminants. While PAPRs generally offer a higher level of protection and comfort compared to negative pressure respirators, they still require fitting to ensure that they form an adequate seal around the face or head, particularly in scenarios where contaminants could infiltrate the working area. Proper fit is essential to ensure that the respirator provides the intended protection factor. The other statements are true in regard to PAPRs. They indeed offer protection factors of up to 50 in many cases, are deemed suitable for use in chemical exposure scenarios, and full facepiece models typically do offer higher protection factors compared to half-mask options due to the additional coverage and protection for the eyes and face. Understanding the importance of a fit test reinforces best practices in respiratory safety and compliance with OSHA regulations.