We all know the great disinfection abilities of UV-C light to kill off pathogens. At the same time, we know that direct contact with a human should be avoided. I propose to equip all hi traffic (high risk) confined areas ( hospital hallways, apartment buildings lobby, elevators, etc) with a permanent LED UV-C lighting system that have a motion-controlled switch with timer setup.
When people leave it will turn on for a couple of minutes to kill off pathogens from surfaces they may have touched and air floating contaminants. If people come into space the lamp will shut off automatically, it also gives vulnerable people the opportunity to wait for a full disinfection cycle (couple minutes) in order to proceed to into safe space.
A similar concept could be implemented as a decontamination booth for medical workers after they worked with an infected person. They just need to protect all exposed skin surfaces and eyes. One way to increase the effectiveness of the system is to install mirror-finished walls panels to maximize light exposure.
A similar concept could be implemented as a decontamination booth for food and packages deliveries in apartment buildings. Where the delivery person places the package into the booth, and a couple of minutes later the customer will remove it. The same goes for any items that need to be exchanged ( for example cash).
All components for this method are available and very affordable and could be implemented immediately.
P.S. I live in a large apartment building with lots of elderly people and realized that we just like cruise ship when it gets to exposure. And something needs to be done.