Occasionally clean the cooling device interior and exterior with a damp cloth. Ensure that the air inlet and outlet vents on the cooling device are free of any dust and dirt, so that heat can be released and the cooling device is not damaged.WARNING! Electrocution Hazard: Failure to obey this warning could result in death or serious injury. Always disconnect the device from the power supply before you clean and service it.NOTICE! Damage Hazard: Never clean the cooling device under running water or in dish water. Do not use abrasive cleaning agents or hard objects during cleaning as these can damage the cooling device.