Helium cylinders should be stored in a cool, dry place that is away from sources of heat, sparks, and flames. Some specific guidelines for storing helium cylinders include: Upright position: Store the cylinder in an upright position to prevent leaks and ensure the safety valve is functioning properly. Ventilation: Provide adequate ventilation to reduce the risk of fire or explosion. Securely stored: Secure the cylinder in place with a chain or strap to prevent it from tipping over or being knocked over. Out of reach of children: Store the cylinder in a place that is out of reach of children, to prevent accidental injury. Away from sources of heat: Store the cylinder away from sources of heat, such as stoves, ovens, and hot water heaters, to prevent the cylinder from overheating. Proper labeling: Make sure the cylinder is properly labeled and marked with the correct information, including the contents and any warnings or safety information. It is important to follow these guidelines and any additional guidelines provided by the manufacturer to ensure the safe storage of the helium cylinder and to prevent accidents or incidents