Chemical risks in medical devices include damage to equipment, the creation of precipitates on surfaces, and the transfer of toxic levels of chemicals to patients. Chlorides, commonly found in potable water, react with metal surfaces causing damage and rust to develop. Saline is not recommended for cleaning metal devices due to the same reason. Repeated exposure to heated water will damage devices over time and reduce their expected life. It is important to be aware of these risks and take necessary precautions to ensure the safety and longevity of medical devices.