Commodity Fumigation License Practice Exam

What is a way to check the fit of a new respirator?

1. Blowing out sharply through the mask

2. Taste test

3. Measuring air flow

4. Consulting a manual

The correct answer is: Taste test

The taste test is a recognized method for checking the fit of a new respirator, specifically when evaluating respirators designed to protect against certain airborne contaminants. This method involves having the wearer taste a specific substance, such as a sweet or bitter solution, while wearing the respirator. If the wearer can taste the substance, it indicates that the respirator is not fitting properly and that air, potentially laden with contaminants, is leaking into the mask. A properly fitting respirator should create a seal that prevents inhalation of unfiltered air. In contrast to other methods, such as blowing out sharply through the mask or consulting a manual, the taste test provides a direct sensory evaluation of the respirator's fit. Measuring airflow, while important in assessing the respirator's performance overall, does not directly indicate whether the respirator fits securely on the wearer’s face. Therefore, the taste test serves as a practical, user-friendly method for ensuring that a new respirator provides adequate protection through a proper seal.