How often should you check if the respirator fits properly?

The correct answer highlights the importance of individual safety when using a respirator. Checking the fit of a respirator each time it is put on ensures that it forms an adequate seal against the wearer’s face. This is crucial because even small gaps can allow contaminants to enter the respirator, compromising the protection it provides. Factors such as facial hair, changes in facial structure, and wear and tear can affect the fit, so it is essential to verify it before each use.

Other answer choices do not adequately address the necessity of frequent checks. For instance, checking once a week may not be sufficient if the respirator is used daily, and doing so only during training sessions fails to account for daily variations or wear. Monthly checks are also too infrequent for something as critical as respiratory protection, as conditions can change quickly and impact fit. Therefore, verifying the fit each time ensures optimal protection and compliance with safety protocols.