[jyl]

Really interesting link actually. They didn’t do it with fancy HVAC, just with ventilation to outside and distancing and (cool) a C02 monitor. I guess it helps that people in gyms are not as prone to getting cold as people sitting in a restaurant.

Germany apparently is really into ventilation as a Covid measure. They have a cultural obsession with fresh air, I believe. Some parts of the US are too hot or humid to open windows wide. In Portland, all summer the weather was nice (except during the fires!) but I still didn’t see most businesses make much effort to open windows. I see more HEPA air cleaners than open windows.

I’ve thought that an HVAC system with air intakes above each table, using pretty authoritative airflow, could be good. But no restaurant has the money to do that.

I’ve also wondered about HVAC systems spreading airborne virus through a building. Don’t think that’s been documented. I did put HEPA filters over the vents in my office. When I have visitors - very rare, maybe once a month, I open the big window by the conference table and run two HEPA air cleaners, and we sit at opposite ends of the table. I’m also quite selective who I’ll meet with and why. Everyone else gets Zoom. And frankly there is very little clamour to meet in person nowadays.