CIE Practice Questions - ACAC Council-certified Indoor Environmentalist (CIE) Exam

OSHA's PEL for formaldehyde is:

0.1 ppm 8-hr TWA 0.75 ppm 8-hr TWA with action level 0.5 ppm 5 ppm STEL only No PEL

Correct Answer:

0.75 ppm 8-hr TWA with action level 0.5 ppm

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