Certified Occupational Health Nurse Practice Exam

Fit testing is a crucial component in ensuring the effectiveness of respiratory protection. It specifically evaluates how well a respirator forms a seal with the wearer’s face. A proper fit is essential for the respirator to function correctly and provide the intended protection against airborne hazards. If a respirator does not fit properly, it can allow contaminants to bypass the filter, exposing the employee to harmful substances.

Fit testing can be performed using either qualitative or quantitative methods, and it checks for proper positioning and leakage around the edges of the respirator mask. This assessment is vital for maintaining the health and safety of employees in environments where respiratory protection is necessary.

While aspects such as comfort level, understanding of usage, and medical evaluations are important for overall respiratory safety, they do not directly assess the critical factor of how well the respirator seals to the individual’s face.