OSHA Respiratory Protection Standards 29 CFR 1910.134
Interpretive Guidance

The following links provide web pages or downloads of current OSHA guidance memos regarding the respiratory protection standards. All are available for free.

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OSHA - Occupational Safety and Health Administration

OSHA Standards Interpretation and Compliance Letters
Table of Contents for 29 CFR Standard "1910.134"

• [10/13/1998] Respiratory Protection Standard: Interim Enforcement Policy.
  
• [02/11/1998] Use of dust respirators below permissible exposure limits.
  
• [10/22/1997] Conditions where OSHA might accept a product that is not approved by NIOSH.
  
• [10/03/1996] Inquiry on beards, respirator use, and fit testing of repirators.
  
• [09/11/1996] Voluntary safety and health audits under the Occupational Safety and Health Act.
  
• [02/15/1996] Does OSHA require monthly inspections for escape respirators when the respirators are not within the hazardous locations?
  
• [01/17/1996] The use of respirators with beards.
  
• [12/04/1995] Clarification of the requirements of the Respiratory Protection Standard.
  
• [09/20/1995] Appropriateness of using Mag-1 Eyewear eyeglass holders with full face piece respirators and self contained breathing apparatus (SCBA).
  
• [09/07/1994] Clarification regarding OSHA regulations on respirator use.
  
• [07/11/1994] Respirator use of spray operations involving paints containing isocyanates.
  
• [03/09/1994] Regulations governing the amount of oxygen the air must contain if air-purifying respirators are used for worker protection.
  
• [02/23/1994] Storage of flammable and/or combustible liquids.
  
• [06/17/1993] Pulmonary function testing training requirements and spirometer transmission of disease.
  
• [03/04/1993] Respiratory protection using single-use dust masks.
  
• [03/04/1993] Respiratory protection for comfort use in environments not exceeding OSHA PEL or STEL standards.
  
• [10/28/1992] Requirements for breathing air for supplied-air respirators.
  
• [10/20/1992] Respirator fit-test requirements.
  
• [09/01/1992] South Carolina's regulatory procedures for single-use respirators.
  
• [03/05/1992] Disposable respirators.
  
• [09/06/1991] Pulmonary Function Tests for employees who must wear respirators.
  
• [02/15/1991] Respirator usage when spraying paints containing isocyanates.
  
• [12/07/1990] Quantitative fit testing of respirators with system which uses naturally occurring particulate
  
• [09/25/1990] Dust exposure for Postal employees
  
• [06/11/1990] Respirator rules as applied to open hatch gauging of sour crude oil storage tanks.
  
• [06/04/1990] NIOSH eliminates maximum use concentrations (MUC) labeling requirement for Chemical Cartridge Respirators
  
• [05/04/1990] The use of contact lenses within full-face respirators.
  
• [05/01/1990] Respirators required during initial hazardous waste site entry
  
• [04/20/1990] Respiratory protection requirements for airborne silica including respirator fit testing requirements.
  
• [04/11/1990] Standards applicable where respiratory protection is not required but employees wear respirators on their own accord.
  
• [02/15/1990] Clarification to the International Association of Firefighters concerning the use of SCBAs for protecting employees with beards.
  
• [01/10/1990] Use of Air-Purifying Respirators In Dangerous Concentrations of Gases Or Vapors
  
• [05/16/1988] Facial hair and respiratory protection.
  
• [02/08/1988] Answers to questions regarding respiratory protection under the asbestos, lead, and respiratory protection standards.
  
• [02/08/1988] Contact Lenses used with respirators
  
• [11/18/1987] Prohibition of beards for respirators.