What are the 3 classes of respirators?

Air-purifying respirators (APRs) Below are the different types of APRs. FFRs are disposable respirators that cover the nose and mouth. Elastomeric full facepiece respirators are reusable and cover the nose, mouth, and eyes. PAPRs are reusable and often have a hood or helmet that covers the nose, mouth, and eyes.

What do respirator numbers mean?

For example, a “95” rating means the mask will filter out 95% of relevant particles. A mask with a “99” rating will filter out approximately 99% of hazardous particles, and the ‘100’ rating filters out 99.7% which means it is virtually impenetrable.

What does NIOSH 42 CFR 84 mean?

NIOSH has developed a new set of regulations in 42 CFR* 84 (also referred to as “Part 84”) for testing and certifying nonpowered, air-purifying, particulate-filter respirators.

What does APF 50 mean?

APF=50. Needs to be fit tested. Half mask/Dust mask. APF=10. Needs to be fit tested.

What is a respirator level?

The protection level expected by a certain class of respirators. Or, the level of protection that a specific wearer may achieve. In other words: The difference between wearing a specific respirator type and wearing no respirator at all.

What does this section mean this respiratory protection standard?

This section means this respiratory protection standard. Tight-fitting facepiece means a respiratory inlet covering that forms a complete seal with the face. User seal check means an action conducted by the respirator user to determine if the respirator is properly seated to the face. Respiratory protection program.

Which hazards require maximal respiratory protection?

Identified or suspected hazards requiring maximal respiratory protection. Working in atmospheres containing less than 19.5% oxygen. Lower level skin hazard may be present. Hazards have been identified.

What is a 100 rating on a respirator?

And those that filter at least 99.97% (essentially 100%) receive a “100” rating. Respirators in this family are rated as N, R, or P for protection against oils. This rating is important in industry because some industrial oils can degrade the filter performance so it doesn’t filter properly.