Personal Protective Equipment for Disaster Sites
This domain tests whether you can select and wear PPE from the hazard assessment rather than from habit, and whether you understand that every added layer of protection costs mobility, communication, and heat tolerance.
What 1910.132 requires
The employer assesses the workplace, selects the equipment, communicates the selection decision, provides it at no cost, and trains workers on when and why it is needed and how to don, doff, adjust, and care for it. Damaged or defective equipment must be replaced, not repaired with tape.
Ensembles, not items
Build protection in layers: head, eyes and face, hearing, respiratory, body, hands, feet. Each layer creates a new problem. Fully encapsulating suits trap heat, and heat stress regularly forces workers out of Level A earlier than the chemical exposure would. Gloves cost dexterity; respirators cost intelligible speech.
Levels A through D
These levels come from EPA and Coast Guard response practice, not from an OSHA standard. Level A is fully encapsulating with SCBA. Level B adds chemical-resistant clothing with SCBA - the highest level with splash protection. Level C pairs chemical-resistant clothing with an air-purifying respirator, allowed only when the contaminant is identified, is below IDLH, and monitoring shows concentrations under the respirator's maximum use concentration. Level D is a work uniform, used only where no respiratory or skin hazard exists.
Worked example
A worker must sample sludge in an open pit. A PID reads 12 ppm of a solvent with a PEL of 25 ppm; the four-gas shows 20.9% oxygen and 0% LEL. A full-facepiece air-purifying respirator has an assigned protection factor of 50, so its maximum use concentration is 50 × 25 = 1,250 ppm - far above 12 ppm. Level C with a full-face APR is defensible, provided a cartridge change schedule and continuing monitoring are in place. Had the reading been in the hundreds or the oxygen low, the answer would be Level B.
Traps that cost marks
Assuming the highest level is always safest; using structural firefighting turnout gear as chemical protection; and pulling on gloves or boots that were reused between shifts without inspection.