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Code of Federal Regulations Title 42. Public Health § 42.84.203 Breathing resistance test;  minimum requirements

Current as of January 02, 2025 | Updated by Findlaw Staff

(a) Resistance to airflow will be measured in the facepiece, mouthpiece, hood, or helmet of a chemical cartridge respirator mounted on a test fixture with air flowing at a continuous rate of 85 liters per minute, both before and after each test conducted in accordance with §§ 84.206 through 84.207.

(b) The maximum allowable resistance requirements for chemical cartridge respirators are as follows:

Maximum Resistance

[Millimeter water column height]

Type of chemical-cartridge respirator

Inhalation

Exhalation

Initial

Final1

Other than single-use vinyl chloride respirators:

For gases, vapors, or gases and vapors

40

45

20

For gases, vapors, or gases and vapors, and particulates

50

70

20

Single-use respirator with valves:

For vinyl chloride

20

25

20

For vinyl chloride and particulates

30

45

2

Single-use respirator without valves:

For vinyl chloride

15

20

(2)

For vinyl chloride and particulates

25

40

(2)

1 Measured at end of service life specified in Table 11 of this subpart.

2 Same as inhalation.

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Cite this article: FindLaw.com - Code of Federal Regulations Title 42. Public Health § 42.84.203 Breathing resistance test;  minimum requirements - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-42-public-health/cfr-sect-42-84-203/

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