I think every business should have a sign on their window saying "Air cleaned every XXX minutes" (and have this verified by inspectors who check the #HEPA filters etc).
Like the health department grades on restaurant windows.
Seems simple, right?
I think every business should have a sign on their window saying "Air cleaned every XXX minutes" (and have this verified by inspectors who check the #HEPA filters etc).
Like the health department grades on restaurant windows.
Seems simple, right?