Apply OSHA exposure guidance when handling fiberglass or mineral-wool insulation

Steps

1. Reference OSHA's Synthetic Mineral Fibers pages (osha.gov/synthetic-mineral-fibers) for current exposure-limit and health-effects guidance rather than older third-party summaries.
2. Note the applicable limits: the general "particulates not otherwise regulated" (PNOR) PEL of 15 mg/m3 total / 5 mg/m3 respirable, and the voluntary industry/NAS-supported limit of 1 fiber/cc (8-hr TWA) for breathable glass fibers, established jointly with manufacturers.
3. Specify PPE and work-practice controls on the job: loose-fitting long sleeves/pants, head covering for overhead work, gloves, and respiratory protection sized to the exposure level, especially in enclosed attic/crawlspace work.
4. Check current carcinogenicity classification context before making marketing/safety claims — NTP removed biosoluble glass wool fibers from its Report on Carcinogens in 2011; confirm current classification directly rather than assuming it for a specific product type.