It would be like trying to mop outside in a rainstorm. Reducing the creation of pollution is much easier than trying to catch it after the fact. Outside of indoor situations. Windfarms as they are today do far more for air pollution by just reducing coal and gas burning.
These aren't zero-blade fans, they are normal multi-blade impellers that are piped into a duct.
Yes and this reminds me of Dyson fans vs the 15 $ fans video
https://www.youtube.com/watch?v=dS0oFmzU06g
Air purification would be a useful feature in windfarms, though.
It would be like trying to mop outside in a rainstorm. Reducing the creation of pollution is much easier than trying to catch it after the fact. Outside of indoor situations. Windfarms as they are today do far more for air pollution by just reducing coal and gas burning.
iirc, the submarine Красный Октябрь ("Red October") did pioneer a bladeless hydro fan propulsion system that scared NATO :)