Respirator Selection Calculator
Determine the required OSHA Assigned Protection Factor (APF) and recommended respirator type from airborne concentration and occupational exposure limit.
Inputs
%
Results
Hazard ratio
10
Required APF10
Effective MUC100
Respirator type code0
O₂ deficient?0
Protection margin1
How to Use This Calculator
- Enter Airborne concentration, OEL / PEL / TLV, and IDLH concentration.
- Set Oxygen level (%).
- Review the Hazard ratio result.
- Use Required APF and Effective MUC to inform your decision.
Ad Placeholder
Ad Placeholder