When carbon monoxide readings are at or above 35 ppm, what action should be taken?

When carbon monoxide readings are at or above 35 ppm, it indicates a potentially hazardous situation due to the presence of this colorless, odorless gas that can be harmful or even fatal if inhaled in significant quantities. The most appropriate action in response to elevated levels of carbon monoxide is to request the hazmat unit.

This is because hazmat teams are specifically trained to handle hazardous materials, including gases like carbon monoxide. They possess the expertise to assess the situation safely, identify sources of the gas, and implement procedures to mitigate the danger, ensuring the safety of those in the vicinity. They can also conduct further testing to determine the extent of the exposure and assist in remediation efforts.

While notifying maintenance and turning off appliances can be important steps in some situations involving potential sources of carbon monoxide, they do not address the immediate threat posed by elevated readings. Evacuating the building might be necessary, but it is typically more effective to involve trained personnel who can properly assess and manage the danger posed by carbon monoxide exposure before evacuation is conducted.