During the COVID-19 pandemic, many businesses have turned to touch-free methods to cut down on opportunities for spreading germs.
For example, many restaurants now provide a QR code for viewing their menu on your smartphone in lieu of traditional paper menus.
In addition, many business restrooms use hand dryers rather than paper towels.
However, according to a new study published in Infection Control & Hospital Epidemiology, the latter may not be as effective as we might think it is.
High-speed air dryers may actually leave more contamination on your hands than paper towels do.