Influenza (flu) is a very infectious disease. In addition to being spread when a sick person coughs, sneezes, or otherwise exhales, the flu can also spread if you touch a surface where flu viruses have been deposited through the air or by touch.

To reduce the spread of disease by touch, there are many "touchless" products for use at home or work: touchless sanitizer/soap dispensers ... touchless faucets ... touchless trash cans ... touchless paper towel dispensers.

These devices typically use infrared motion detector technology to sense when your hand is near.