vorlon@maleve ASHRAE 241 appears to be a very rigorous standard for air safety, that is effectively impossible to know you've implemented without a professional contractor who is already well-versed in it.
In the current climate, we struggle to even get schools to deploy bought-and-paid-for portable filters into classrooms.
Do you think referencing this standard, vs something more high-level like the Lancet report, as a "minimum", could be setting folks up for failure?