Final answer:
Individuals must undergo a medical evaluation and possibly a fit test before being allowed to wear a respirator. This ensures they are fit to use it safely and that it provides the necessary level of protection.
Step-by-step explanation:
Before an individual can be permitted to wear a respirator, they must undergo a fitness assessment designed to determine their ability to safely use the respirator. This process typically includes a medical evaluation, which assesses the individual's health status and fitness in relation to the respiratory protection required. Depending on the circumstances, such as for healthcare workers or those in certain industries, a fit test might also be conducted to ensure that the selected respirator forms a proper seal on the user's face and provides the intended level of protection. Additionally, proper training on the use, maintenance, and limitations of the respirator is crucial to ensure compliance with safety protocols and effectiveness in protecting the individual from respiratory hazards.