The safest way to handle oxygen cylinders is to keep them _____.

Keeping oxygen cylinders away from heat sources is critical for safety. Oxygen supports combustion, meaning that it can cause other materials to burn more fiercely. If oxygen cylinders are near a heat source, such as an open flame, hot surfaces, or high-heat equipment, the risk of fire or explosion increases significantly. Therefore, storing and handling these cylinders at a safe distance from heat is essential to prevent accidents and ensure safe working conditions.

In contrast, placing cylinders in confined spaces, lying them down, or exposing them to direct sunlight poses various risks, including potential leaks and pressure increases that can lead to hazardous situations. Proper storage and handling techniques are vital in avoiding these dangers.