---
type: threshold
id: hydrogen-peroxide-as-h-2-o-2
asset: workplace-exposure-limits
title: "Hydrogen peroxide, as H $2 O $2 — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "7722841 | | Hydrogen peroxide, as H $2 O $2 | 1 | 1.4"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Hydrogen peroxide, as H $2 O $2"
pel_ppm: "1"
pel_mgm3: "1.4"
verified: true
---
**Substance:** Hydrogen peroxide, as H $2 O $2

**PEL (ppm):** 1

**PEL (mg/m³):** 1.4

> 7722841 | | Hydrogen peroxide, as H $2 O $2 | 1 | 1.4

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