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In a confined space where ventilation is impossible, which agency must approve the airline respirators OSHA requires?

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  1. AWS
  2. OSHA
  3. NIOSH

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References

  1. OSHA 29 CFR 1910.252 General requirements, welding, cutting and brazing www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.252 Checked 2026-10-10.

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