OSHA’s Proposed Asbestos Respirator Changes Raise Important Safety Concerns
As someone who has spent decades navigating the complexities of asbestos regulations, we recognize that clarity, practicality, and worker protection must be at the core of any regulatory update. The Occupational Safety and Health Administration’s (OSHA’s) recent proposal to revise certain respirator-related provisions within the asbestos construction standard (29 CFR 1926.1101) attempts that but it’s important for all of us in the industry to carefully evaluate how these changes impact worker protection, especially concerning respirator requirements. Three proposed changes stand out to us as potentially problematic: 1. Removing the HEPA Filter Requirement For decades, HEPA filters have been the gold standard for respirators, protecting workers from asbestos fibers. The current OSHA standard mandates HEPA filters (P100 filters) on all powered and non-powered air-purifying respirators to ensure maximum filtration efficiency. OSHA’s proposal to eliminate this specific HEPA filter requirement, citing updated National Institute of Occupational Safety and Health (NIOSH) certification standards (42 CFR part 84), raises questions. While newer filter types may meet certification requirements, HEPA filters’ proven reliability and high filtration efficiency have been foundational in asbestos protection. The risk here is that removing the HEPA filter mandate could lead to the use of less effective filters (N95s) or confusion over filter equivalency, ultimately compromising worker safety. The asbestos hazard is too severe to accept any uncertainty about filter performance. 2. Replacing Supplied-Air Respirators with PAPRs Current OSHA standards require supplied-air respirators (SARs) operated in pressure-demand mode with an auxiliary positive-pressure self-contained breathing apparatus (SCBA) backup for exposures exceeding 1 (one) fiber per cubic centimeter (f/cc). The proposed change to this section would replace the specific respirator requirement (SAR/SCBA, with an Assigned Protection Factor (APF) of 1,000) with a requirement to provide a respirator with a minimum APF of 1,000. That would include a full-face Powered Air Purifying Respirator (PAPR)
