On the TV show Monk, the main character occasionally donned a facemask to ward off the germs he so famously feared. But what Adrian Monk didn’t show viewers is the need for the layman respirator ...

We live in a world of labels. We trust some labels to be precise: We expect a 250 mg capsule to deliver 250 milligrams of medication, and our 2-liter soft drink bottle undoubtedly holds two liters.

Many users in a group may obtain values close to the labeled NRR, but a substantial portion typically do not. The only way to determine a person's attenuation level is with a fit test system. Editor's ...

Preregistration is required for all in person, ZOOM, or Canvas Initial Training. In Person class sizes are limited. See individual training types at the left to Sign ...

On April 8, 2020, the Occupational Safety and Health Administration (OSHA) issued an enforcement memorandum titled Expanded Temporary Enforcement Guidance on Respiratory Protection Fit-Testing for N95 ...