Natural Stone Institute Releases New Guidance on Respirator Use for Stone Fabricators

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The Natural Stone Institute has published updated respirator use guidance specifically for stone fabrication shops. This is not a generic OSHA summary – it is targeted, practical advice written for shop owners, safety managers, and fabricators who handle engineered stone daily.

Respiratory protection remains one of the most critical – and most commonly misunderstood – components of a fabrication shop’s silica safety program. Too many shops rely on disposable dust masks that do not meet the protection factor required for crystalline silica exposure. The NSI guidance addresses selection, fit testing, maintenance, and the critical distinction between different respirator types for different tasks.

Fabricators should expect several practical takeaways:

• When an N95 is enough – and when it is not
• The role of powered air-purifying respirators (PAPRs) in dry cutting environments
• Fit testing requirements and documentation
• How respirator programs fit into broader written exposure control plans

This guidance is part of a broader NSI effort that also includes the 2024-2025 silica safety progress report and expanded advocacy and research programs. For any fabrication shop serious about compliance, these resources form an essential reference library.

A respirator program is only as good as its weakest link – and in most small fabrication shops, that weakest link is the gap between what the safety manual says and what happens on the shop floor. The NSI guidance addresses this gap directly with practical, shop-level advice. Combined with https://silicafreesurfaces.com/nsi-silica-safety-report-2026/the Institute’s broader silica safety roadmap, it gives fabrication shop owners a concrete path from policy to practice.

Every fabrication shop that handles engineered stone should review this guidance and compare its current respirator practices against the NSI recommendations – the gap is often larger than shop owners expect.