For air filtering, you want big fans that move relatively slowly. At least, at lower settings.
I still haven’t seen anything else that can compare to IQAir HyperHEPA filters. They use these things in hospitals.
I still haven’t seen anything else that can compare to IQAir HyperHEPA filters. They use these things in hospitals.
I agree big fans moving slowly is better all else equal, and something AirFanta-like that used a 12" fan could be even better.
Turning them up to med/high would just cause too much airflow.