Pressing elevator buttons with paper towels may lead to cross-infection with a new coronavirus. Many neighborhoods have an open packet of napkins taped to the side of the button for homeowners to access in order to prevent elevator cross-infection. This protective measure is heartwarming, but it may also lead to cross-infection. If an infected patient or carrier sneezes or coughs in the elevator, the virus may remain on the paper or package, leading to secondary infection. It is recommended to cover the cough with tissue paper and wear a good mask when going out, as well as to wash and disinfect your hands regularly to maintain hand hygiene. Property owners should strengthen the disinfection of public areas such as elevators and hallways in the community, and disinfection needs to be done carefully and continuously.