Respirators for Chlorine

The exposure limits

What the federal rule says

Each entry is condensed from the paragraph cited; the paragraph itself is the rule and the link opens it.

29 CFR 1910.134(d)(3)(iii)(B): For gases and vapors: an atmosphere-supplying respirator, or an air-purifying respirator with a NIOSH-certified ESLI for the contaminant, or a cartridge change schedule based on objective data.

29 CFR 1910.134(d)(2): IDLH atmospheres require a pressure-demand SCBA or a combination pressure-demand supplied-air respirator with auxiliary self-contained air supply.

Source: 29 CFR, Occupational Safety and Health Standards, as published by OSHA (ecfr.gov / osha.gov), read Nov 2–3 2026.

California (Cal/OSHA)

Each entry is condensed from the paragraph cited; the paragraph itself is the rule and the link opens it.

Title 8 §5144(d): The same selection rules apply under Cal/OSHA.

Source: California Code of Regulations, Title 8, as published by Cal/OSHA (dir.ca.gov), read Nov 2–3 2026.

What the makers' data lists for chlorine gas

Chlorine is in the North acid gas group (N75002L, N75003L, 75SCL and their P100 versions) and in the mercury vapor and chlorine cartridges (N750052L, 75852P100L); the 7902 mouthbit is the escape device for acid gases including chlorine (NIOSH TC-23C-0288). Dräger lists chlorine under its AG/CL code (bayonet 6738025, 6738035, Multi-Gas+) and the X-plore 8000 MultiGas filters.

North cartridges and filters whose chart entry covers it

Source: North Cartridge & Filter Reference Chart; NIOSH approval labels (PIP).

North facepieces

Source: North product sheets (PIP).

Dräger filters listed for it

Source: Dräger Guide for Selection and Use of Respiratory Filtering Devices, NIOSH (DMC-104642); Dräger X-plore Bayonet Filters NIOSH product information (DMC-109824); Dräger X-plore 8000 product information (DMC-102510).

Dräger masks

Source: Dräger Product Catalog, Industrial Applications (DMC-107423).

Dräger X-plore 8000 PAPR blowers

Source: Dräger X-plore 8000 product information (DMC-102510).

Dräger selection guide entries

1 entries in the Dräger respiratory selection guide match chlorine gas; each names the filters by part number.

Source: Dräger Respiratory Protection Selection Guide (PIP document library).

Assigned protection factor

Source: OSHA 29 CFR 1910.134 Table 1 (Assigned Protection Factors). The APF applies only when the respirator is used in a program that meets the standard, including fit testing of tight-fitting facepieces (29 CFR 1910.134(f)) and a cartridge change schedule (29 CFR 1910.134(d)(3)(iii)).

Guides: half mask vs full facepiece · assigned protection factors · cartridge change schedules · P100 vs N95 vs R95 · what OSHA requires for fit testing · cleaning and storing respirators.

Respirators for Chlorine questions

Which cartridges list chlorine? North: N75002L, N75003L, 75SCL, 7582P100L, 7583P100L, 75SCP100L, N750052L, 75852P100L (chart). Dräger: the filters coded AG or CL (6738025, 6738035, 6738351, 6738361; PAPR 6739565, 6739570, 6739590).

What is the chlorine IDLH? 10 ppm (NIOSH Pocket Guide); OSHA ceiling 1 ppm.