For precautions related to HFP, what action is recommended when exposure reaches 90 PPM?

• A. Don mask
• B. Evacuate
• C. Monitor and wait
• D. Call medical

Answer: (B)

When exposure to this hazard reaches a high concentration, removing people from the area is the immediate priority. Evacuating minimizes inhalation and skin/eye contact with the contaminant, which is crucial because at 90 PPM masking alone isn’t enough to keep you safe for the duration needed to address the release. The aim is to get to fresh air and out of the source’s reach as quickly as possible, then seek medical evaluation if symptoms develop and report the incident.

Donning a mask won’t reliably protect against this level of exposure, and waiting to monitor the situation or simply calling medical after exposure begins doesn’t stop the hazard from causing harm. Evacuation first, then medical assessment if needed, is the appropriate sequence.