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Permissible Limits for Formaldehyde Exposure

OSHA has set these permissible limits for formaldehyde exposure:

PEL = 0.75 ppmPermissible Exposure Limit for an eight hour time weighted average (TWA).
STEL = 2.0 ppmShort Term Exposure Limit for a 15 minute exposure.
Action Level = 0.5 ppmAction Level for an eight hour time weighted average (TWA).