Changes to this revision include: updated definitions section to include definitions for assigned protection factors (APF) and maximum use concentrations (MUC); greater clarification on voluntary respirator use, and a better explanation of a compliant respirator program and provides additional acceptable methods to assess respiratory hazards; updates the directive with information related to the revised Hazard Communication standard (1910.1200); and provides guidance on evaluating the need for respiratory protection for chemicals used in workplaces by referring to employer’s Hazard Communication program wherein chemical manufacturers communicated the need for respiratory protection.

Muster einer Atemluft-Einwegmaske (Photo credit: Wikipedia)

According to this directive if employers require employees to wear respirators for the protection against TB they must be in compliance with the respirator standard 1910.134.  Probably the most interesting portions of the directive are the modifications to voluntary use of respirators.  According to the directive, it was the intent of the standard that the employer would not be required to incur any costs associated with voluntary use of filtering  facepiece respirators (dust masks) other than providing a copy of Appendix D of the standard to each user.  OSHA is concerned that voluntary use may cause an employee’s health being jeopardized by the wearing of a respirator, or the wearing of a dirty respirator that can cause dermatitis or ingestion of a hazardous chemical, and the sharing of a respirator that leads to transmittal of disease.

Voluntary use of filtering facepiece respirators is one of the most misunderstood sections of the respirator standard.  Some points from the directive: NIOSH-approved filtering facepieces are strongly recommended but are not required; voluntary use does not require the employer to have a written program; and merely posting Appendix D is not considered adequate.

The directive is a useful resource to give employers an indication of how OSHA will enforce the respirator standard and it is a useful tool to help avoid citations or to fight violations.  

Related articles  

• Filtering Facepiece Respirator or Dust Mask. Which is it?
• Danger is in the Air: Choosing the Right Respirators
• The Difference Between Respirators and Surgical Masks
• OSHA Quicktakes Announces HAZCOMM Standard Revision
• Importance of Respiratory Protection at Demolition or Disaster Sites

safety
asbestos
mold
lead
indoor air quality
occupational safety and health
occupational safety
OSHA
EPA
asbestos consulting
OSHA consulting
indoor air quality consulting
Long Island