In what situation should an employer assess the fit of respirators?

An employer should assess the fit of respirators annually and whenever there is a change in the employee's physical condition due to several important considerations related to health and safety. Proper fit is critical for respirators to function effectively, as a poor fit can lead to leakage and reduce the protection against hazardous airborne contaminants.

Assessing the fit annually ensures that any changes over time that may affect fit — such as weight fluctuations, facial hair growth, or changes in health status — are taken into account. Changes in an employee's physical condition can affect how well a respirator seals around the face. Health conditions such as respiratory illnesses or allergies can also impact how a respirator fits and performs.

Thus, regular assessments are crucial to maintain the effectiveness of respirators in protecting workers from respiratory hazards, and this approach aligns with established safety standards and regulations for workplace safety in environments where respirators are necessary.