QTP4B051-19 — Respiratory Protection

QTP4B051-19 governs respiratory protection qualification training, including respirator selection and qualitative and quantitative fit tests.

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  • Publication number: QTP4B051-19
  • Title: RESPIRATORY PROTECTION
  • Date: 2024-03-13

View QTP4B051-19 on armypubs.army.mil

The package covers selecting respiratory protective devices and performing qualitative and quantitative fit tests. It requires contaminant evaluation, hazard-ratio calculations, appropriate device selection, and documentation in AF Form 2773 or OEHMIS.

Topics covered

  • Respirator selection
  • Contaminant classification
  • Hazard-ratio calculations
  • Assigned protection factors
  • Qualitative fit tests
  • Quantitative fit tests
  • User seal checks
  • DOEHRS documentation

Questions and answers

How should a respirator be selected for a contaminant?

The respirator must be appropriate for the contaminant's physical form and chemical properties and the conditions under which it will be used.

What must be considered before selecting a NIOSH-approved respirator?

A NIOSH-approved respirator is then selected for the “situation” after the physical characteristics and functional capabilities and limitations, and the assigned protection factor have been considered.

What assigned protection factor must a selected respirator have?

Select respirators with an assigned protection factor (APF) greater than the value of the hazard ratio, as listed in AFI 48-137, Attachment 2. (paragraph 3)

How is the mask seated before the user seal check?

The mask is seated on the face by moving the head from side-to-side and up and down slowly while taking in a few slow deep breaths. (paragraph 7)

What happens if the test subject fails the user seal check tests?

Another facepiece shall be selected and retested if the test subject fails the user seal check tests. (paragraph 7)

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