Over the past few years we've developed a promising technique to prevent the airborne transmission of viruses like influenza virus, which we would expect to be effective for coronavirus too. In short the idea is to use the power of light. Heres how it works:
In short, exposure to far-UVC light is safe for people, but potentially lethal for viruses in the air.
We've worked a lot on both the safety aspects of far-UVC light as well as its efficacy at killing viruses, and it's looking very promising. A couple of companies have developed practical inexpensive far-UVC lamps and a US lighting fixture company is incorporating the far-UVC lamps into conventional light fittings.
The big picture idea is that these lamps could be incorporated into conventional light fittings so that they would be very easy to install in public spaces such as airports, trains stations, airplanes, etc. To us it looks like one of the very few approaches that has the potential to prevent the spread of coronavirus, as opposed to curing it.