RE:if you can't detect it in the air...https://masks4canada.org/ventilation-in-schools/
Is mentioned in the article as the source of the open letter.
I'm not a twitter user (or facebook, etc..) but I am surprised that a twitter feed like the one being pointed to on that page
Twitter thread discussing importance of ventilation hasn't picked up KNR/BioCloud yet in initial tweets and/or retweets. There are so many such forums (including that one) where the product could gain so much exposure one would expect. Eventually, if enough people learn about BioCloud, it's reasonable to anticipate that it will be mentioned more often on sites like that one IMO.
KNR's tech can be relatively expensive (for a building requiring a lot of them that is), but then so too were air brakes initially I'm guessing.... Keep getting the word out. It won't [necessarily] happen by itself (or quickly, unassisted) as the Air Brake analogy discussed earlier would suggest..