What is the permissible exposure limit (PEL) for formaldehyde exposure according to OSHA?

The permissible exposure limit (PEL) for formaldehyde, as established by OSHA, is specifically set at 0.75 parts per million (ppm) measured as an 8-hour time-weighted average. This standard is designed to protect workers from potential health effects, as formaldehyde is classified as a probable human carcinogen, and excessive exposure can lead to various health issues, including respiratory problems and skin irritations.

The significant consideration when establishing this limit is the continuous nature of exposure in many laboratory and industrial settings, necessitating a guideline that minimizes risk while allowing for practical operational flexibility. The 0.75 ppm figure reflects a balance between safeguarding health and maintaining work efficiency.