42 CFR § 84.125 - Particulate tests; canisters containing particulate filters; minimum requirements.
---
identifier: "/us/cfr/t42/s84.125"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "42 CFR § 84.125 - Particulate tests; canisters containing particulate filters; minimum requirements."
title_number: 42
title_name: "Public Health"
section_number: "84.125"
section_name: "Particulate tests; canisters containing particulate filters; minimum requirements."
chapter_name: "PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "G"
subchapter_name: "OCCUPATIONAL SAFETY AND HEALTH RESEARCH AND RELATED ACTIVITIES"
part_number: "84"
part_name: "APPROVAL OF RESPIRATORY PROTECTIVE DEVICES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "29 U.S.C. 651 30 U.S.C. 3, 5, 7, 811, 842(h), 844."
regulatory_source: "60 FR 30355, June 8, 1995, unless otherwise noted."
cfr_part: "84"
---
# 84.125 Particulate tests; canisters containing particulate filters; minimum requirements.
Gas mask canisters containing filters for protection against particulates (e.g. dusts, fumes, mists, and smokes) in combination with gases, vapors, or gases and vapors, shall also comply with the requirements as prescribed in §§ 84.170 through 84.181, except for the airflow resistance test of § 84.172.
[60 FR 30355, June 8, 1995, as amended at 85 FR 20607, Apr. 14, 2020]