When you talk to Indoor Air Quality (IAQ) most are uncomfortable with UV. Reason being that while you can get rid of viruses, you can also create volatile compounds. Our homes' air is like a soup of natural and synthetic chemicals. From your flooring wear to your decor off-gassing to cooking, there are elements in your air that may be safe as they are, but they can completely change when they hit something volatile like ozone (from cars). Subsequently there can be a chain reaction with other compounds, potentially causing particles in your air that are bad for your health. If you could see that with magical glasses it would seem as if there are fireworks happening in your air triggered by those volatile compounds. So while UV has clear benefits, the byproducts that the lab conditions usually don't catch, make the applications limited.