Which of the following statements about respirators is true?

The statement that respirators must be fit-tested for each worker required to wear them is an accurate reflection of safety protocols concerning the use of respirators in various workplaces. Fit-testing is an essential procedure to ensure that each individual who is required to wear a respirator has it properly fitted to their face. This is crucial because a poor fit can lead to air leaks, which can undermine the respirator's effectiveness in filtering out harmful airborne contaminants.

Fit-testing must be done according to specific standards set by organizations like the Occupational Safety and Health Administration (OSHA) and other health authorities. It ensures that the respirator provides the intended level of protection by adequately sealing against the wearer’s face. This process often involves quantitative or qualitative tests to determine the effectiveness of the mask fit.

In contrast, other statements presented do not align with safety standards: cleaning chemical spills typically requires appropriate protective equipment, including the use of respirators for certain toxic substances; generic sizes may not provide the proper fit for all individuals, highlighting the need for personalized fit-testing; and most respirators cannot be reused indefinitely, as they have a defined lifespan and should be periodically replaced to maintain effectiveness.