Chemical, Biological, Radiological, and Nuclear Powered, Air-Purifying Respirators
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Hardware Requirements Guide
Unit Designation: Loose Fit, Available Sizes
| Canisters Per Unit | 1 Size | 2 Sizes | 3 Sizes |
|---|---|---|---|
| 1 Canister Per Unit | 1 size, 1 canister per unit | 2 sizes, 1 canister per unit | 3 sizes, 1 canister per unit |
| 2 Canisters Per Unit | 1 size, 2 canisters per unit | 2 sizes, 2 canisters per unit | 3 sizes, 2 canisters per unit |
| 3 Canisters Per Unit | 1 size, 3 canisters per unit | 2 sizes, 3 canisters per unit | 3 sizes, 3 canisters per unit |
Unit Designation: Tight Fit, Available Sizes
| Canisters Per Unit | 1 Size | 2 Sizes | 3 Sizes |
|---|---|---|---|
| 1 Canister Per Unit | 1 size, 1 canister per unit | 2 sizes, 1 canister per unit | 3 sizes, 1 canister per unit |
| 2 Canisters Per Unit | 1 size, 2 canisters per unit | 2 sizes, 2 canisters per unit | 3 sizes, 2 canisters per unit |
| 3 Canisters Per Unit | 1 size, 3 canisters per unit | 2 sizes, 3 canisters per unit | 3 sizes, 3 canisters per unit |
- Page last reviewed: December 10, 2014
- Page last updated: April 28, 2008
- Content source:
- National Institute for Occupational Safety and Health National Personal Protective Technology Laboratory