What exactly are assigned protection factors (APFs), why are they important and what as an employer must you do about them? The answers to these questions and others are crucial to the safety of your employees and the success of your business.
The relationship between these two variables can be expressed not only as a protection factor (a number always greater than 1), but also as the penetration or efficiency. Protection factor assessments are made almost exclusively on human/respirator systems; penetration and efficiency assessments are made only on component parts of the respirator system.