I agree that money makers make poor policy for all. However, if it only helps against only one of a number of airborne concerns - COVID variants, common cold,

I agree that money makers make poor policy for all. However, if it only helps against only one of a number of airborne concerns - COVID variants, common cold, flu - then people will want it. If delivery is a specifically tuned LED light bulb away then it might not cost that much either. It is all too early to tell. But it warrants investigation.