No, it is generally not safe to leave oxygen tanks in a hot car. Oxygen tanks are pressurized containers, and exposing them to high temperatures can increase the pressure inside the tank, potentially leading to a rupture or explosion.
High temperatures can also cause other safety concerns with oxygen tanks. For example, extreme heat can degrade the materials used in the tank, including seals and valves, which may compromise the integrity of the container. Additionally, heat can increase the volatility of any flammable materials that may be present near the oxygen tank, leading to a fire hazard.
If you need to transport oxygen tanks, it is important to follow the manufacturer's instructions and guidelines for storage and transportation. In general, it is recommended to store oxygen tanks in a cool, well-ventilated area, away from direct sunlight and extreme temperatures.
If you have specific concerns about storing or transporting oxygen tanks, it is best to consult with a medical professional or the supplier of the oxygen tanks for guidance. They can provide you with the most accurate and appropriate information based on your specific situation.