Air-Purifying Respirators

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Difference between a dust mask and a respirator

Back

A dust mask is a filtering facepiece respirator that is disposable and does not protect against gases or vapors.

Front

Types of APR

Back

Elastomeric half/full facepiece and powered air-purifying and can use both filters and cartridges.

Front

Differences between filters and cartridges

Back

Filters remove contaminants from the air through filter layers for particulates, absorbent cartridges absorb gases and vapors,

Front

When to wear APR

Back

When working with gases, vapors, aerosols, and airborne particles.

Front

Requirements before using a respirator

Back

- User requires medical evaluation - Fit test - Proper use procedures exist - Employee must be trained - Respiratory program evaluated for effectiveness

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Approval for workplace respirators in North America

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Must be approved by the National Institute for Occupational Safety and Health (NIOSH).

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Respirator selection considerations

Back

- Cartridge-type filters are color-coded - Concentration of chemical - Check SDS Section 8 for recommendations

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Proper maintenance of an air-purifying respirator

Back

- Inspect regularly

- Repair or Replace

-Clean

-Disinfect

-Reassemble

-Store

Front

When to replace or discard the filter

Back

Replace the filter if it is visibly dirty, wet, damaged, or if breathing becomes difficult.

Front

Permissible Exposure Limits (PEL)

Back

PELs are usually described as the average exposure over a specified period, usually an eight-hour workday. Government regulations define PEL and the maximum.