In case of a gas leak, why is it critical to avoid sources of ignition?

Avoiding sources of ignition in the event of a gas leak is critical primarily to prevent potential fires or explosions caused by igniting the gas. Many medical gases, such as oxygen, are flammable or can support combustion, making the presence of any ignition source—like open flames, sparks, or static electricity—extremely hazardous. If ignited, a gas leak can lead to severe consequences, including fires that can spread rapidly or explosions that endanger lives and property.

While proper ventilation can help disperse the gas, minimizing gas escape, and ensuring staff safety are important considerations, they do not focus directly on the immediate and life-threatening risks posed by igniting the gas itself. Thus, the emphasis on avoiding ignition sources is crucial in mitigating the risk of catastrophic incidents associated with gas leaks.