What is the toxicological threshold for CO2 exposure?
The Occupational Safety and Health Administration (OSHA) and other regulatory bodies provide guidelines for CO2 exposure levels. For instance, OSHA has set the permissible exposure limit (PEL) for CO2 at 5,000 ppm (parts per million) as an 8-hour time-weighted average. Immediate and significant health effects are typically observed at concentrations above 30,000 ppm.
