OSHA Regulations, Standard:   29 CFR 1910.134 Appendix D (Mandatory)

Title:  Information for Employees Using Respirators When Not Required Under the Standard 

Respirators are an effective method of protection against designated hazards when properly
selected and worn. Respirator use is encouraged, even when exposures are below the exposure
limit, to provide an additional level of comfort and protection for workers. However, if a respirator
is used improperly or not kept clean, the respirator itself can become a hazard to the worker.
Sometimes, workers may wear respirators to avoid exposures to hazards, even if the amount of
hazardous substance does not exceed the limits set by OSHA standards. If your employer provides
respirators for your voluntary use, of if you provide your own respirator, you need to take certain
precautions to be sure that the respirator itself does not present a hazard. 

You should do the following: 

1. Read and heed all instructions provided by the manufacturer on use, maintenance, cleaning and
care, and warnings regarding the respirators limitations. 

2. Choose respirators certified for use to protect against the contaminant of concern. NIOSH, the
National Institute for Occupational Safety and Health of the U.S. Department of Health and Human
Services, certifies respirators. A label or statement of certification should appear on the respirator or
respirator packaging. It will tell you what the respirator is designed for and how much it will protect
you. 

3. Do not wear your respirator into atmospheres containing contaminants for which your respirator
is not designed to protect against. For example, a respirator designed to filter dust particles will not
protect you against gases, vapors, or very small solid particles of fumes or smoke. 

4. Keep track of your respirator so that you do not mistakenly use someone else's respirator. 

[63 FR 1152, Jan. 8, 1998; 63 FR 20098, April 23, 1998]

        OSHA Regulations (Standards - 29 CFR) - Table of Contents