In what condition should SCBA cylinders be stored?

SCBA cylinders should be stored in a cool, dry place away from heat sources to ensure their integrity and functionality. High temperatures can increase the pressure inside the cylinders, potentially leading to damage or failure. Additionally, moisture can cause corrosion, jeopardizing the cylinder's structural integrity and safety. Storing the cylinders in a stable environment helps maintain the safety and reliability of the equipment, ensuring that it performs effectively when needed in emergencies.

The other options do not prioritize the necessary environmental conditions for cylinder safety and performance, either because they compromise the cylinder's integrity or do not consider the importance of temperature and moisture control.