Definitions Definitions | Efficacy | Environment | Proper Use | Safety Do disinfectants help cure diseases? Disinfectants kill the germs on hard surfaces. They are not intended for use on humans. Cleaning vs. Disinfecting Although commonly used interchangeably, cleaning, sanitizing, and disinfecting are three separate things. “Green” products are typically cleaners not disinfectants Don’t be misled by “green” products. MOST do not kill pathogens on hard surfaces.