F or electronics such as cell phones, tablets, touch screens, remote controls, and keyboards, remove visible contamination if present. Consider the use of alcohol-based wipes or sprays containing at least 70% alcohol to disinfect touch screens. Dry surfaces thoroughly to avoid pooling of liquids. The efficacy of alternative disinfection methods, such as ultrasonic waves, high intensity UV radiation, and LED blue light against COVID-19 virus is not known. Therefore, EPA cannot confirm whether, or under what circumstances, such products might be effective against the spread of COVID-19.