What safety measure should be taken when working with propane appliances?

Ensuring proper ventilation is crucial when working with propane appliances because propane, being a heavier-than-air gas, can accumulate in low-lying areas if there is a leak. Adequate ventilation helps disperse any potential gas buildup, reducing the risk of fire or explosion. It also ensures that any combustion byproducts, such as carbon monoxide, are adequately dispersed away from work areas.

Maintaining a well-ventilated environment is essential for the safety of both the technician and any occupants in the vicinity, as it significantly minimizes the risk of harmful exposure to gases. While other measures may have their uses in specific contexts, proper ventilation is a fundamental safety practice when dealing with propane appliances to prevent hazardous conditions.