Minnesota Pesticide Applicator Practice Test

What should you do every time you put on a respirator?

1. Conduct a check-valve check

2. Conduct a fit test

3. Conduct an air-gap check

4. Check the pesticide rating

The correct answer is: Conduct a fit test

Conducting a fit test is essential each time a respirator is put on because it ensures that the respirator is properly sealed to the user's face, thereby providing the necessary protection against harmful substances. A fit test determines the effectiveness of the respirator by verifying that there are no gaps between the respirator and the face, which could allow contaminants to enter. This step is critical for ensuring that the respirator will function correctly under the conditions it is being used. A good fit is vital to maintain an adequate level of protection against airborne pesticides and other harmful materials. Different types of respirators may require different fit testing procedures, such as qualitative or quantitative methods, depending on the specific type and intended use. Other practices, like a check-valve check or an air-gap check, may be relevant in specific contexts but are not standard protocol for ensuring a proper fit of the respirator itself. Checking the pesticide rating is important for ensuring that the respirator is rated for the specific chemicals being handled, but again, this does not replace the necessity of conducting a proper fit test each and every time the device is donned.