What is wrap door knob in aluminum foil when alone?

Wrapping a door knob in aluminum foil when alone is a safety precaution that can help prevent the spread of germs. The coronavirus can survive on surfaces such as door knobs for several hours, so touching a contaminated surface can increase the risk of infection. Wrapping the door knob in aluminum foil creates a barrier between the individual's hands and the surface, reducing the risk of infection. Additionally, aluminum foil is easy to dispose of, making it a convenient and practical option. However, it is important to remember to wash your hands properly after touching any surface to reduce the risk of infection.