---
type: threshold
id: nitrous-oxide
asset: workplace-exposure-limits
title: "Nitrous oxide — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "0024972 | | Nitrous oxide | 50 | 90"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Nitrous oxide"
pel_ppm: "50"
pel_mgm3: "90"
verified: true
---
**Substance:** Nitrous oxide

**PEL (ppm):** 50

**PEL (mg/m³):** 90

> 0024972 | | Nitrous oxide | 50 | 90

Source: <https://www.dir.ca.gov/title8/5155.html>