This. There have also been tons of experiments, starting with the Atlanta olympics, where external pollution sources get throttled and you can see a very clear and immediate drop in cardiovascular-related deaths.
Also there are plenty of standalone units that don’t integrate with HVAC. E.g. I have the Winnex 5300-2, which is one of the Amazon recommended units. (Some of the others are designed for smokers, chefs, or other specialized purposes.)
Also there are plenty of standalone units that don’t integrate with HVAC. E.g. I have the Winnex 5300-2, which is one of the Amazon recommended units. (Some of the others are designed for smokers, chefs, or other specialized purposes.)