When is it appropriate to use a respirator?

Using a respirator is appropriate when working in areas that have insufficient ventilation or harmful airborne substances. This scenario encompasses a variety of work environments, including construction sites, industrial facilities, and locations where toxic gases, dust, or chemical vapors might be present. The primary function of a respirator is to provide protection for the respiratory system, ensuring that a worker does not inhale hazardous particles or contaminants that could lead to serious health issues.

On the other hand, working outdoors may not necessarily require a respirator if air quality is acceptable and there are no harmful airborne substances present. Relying solely on a supervisor's mandate does not account for the worker’s individual assessment of the environment; personal protective equipment should be used based on the specific conditions encountered. Additionally, performing administrative tasks typically does not expose a worker to airborne hazards, making the need for respiratory protection in those scenarios uncommon.