# Hydrogen peroxide, as H $2 O $2 — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Hydrogen peroxide, as H $2 O $2, pel (ppm) is 1; pel (mg/m³) is 1.4, verified against its source on 2026-08-05.

- **Substance:** Hydrogen peroxide, as H $2 O $2
- **PEL (ppm):** 1
- **PEL (mg/m³):** 1.4

## What the source says

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

## Source

- https://www.dir.ca.gov/title8/5155.html

Last verified: 2026-08-05. Review by: 2027-08-05.
Part of [US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side](https://referencesource.org/workplace-exposure-limits/).