What must be identified before ventilating buildings with a carbon monoxide leak?

Identifying the source of a carbon monoxide leak is critical before initiating ventilation procedures. Carbon monoxide is a colorless, odorless gas that can be extremely dangerous and even lethal. Understanding where the leak is coming from allows responders to address the root of the problem and potentially stop further emissions of the gas. Without knowing the source, simply ventilating the building may not adequately remove the carbon monoxide, as continued release could pose ongoing risks to occupants and responders.

Ventilating without addressing the source may just disperse the gas throughout the space rather than eliminate it, and it could inadvertently lead to increased exposure for anyone inside the building. Thus, ensuring that the source is identified allows responders to take the necessary steps to control or terminate the leak, creating a much safer environment for evacuation and further actions.