It's an electrostatic precipitator, which will pull solids out of the air. Those have been around for a long time; Honeywell sells them as furnace filters, they were a staple of Sharper Image catalogs, and every decent coal plant has a huge one pulling fly ash out of flue gases.[1]
Any large precipitator needs a way to get the solids off the plates and into a collection bin. Home precipitators typically lacked that; the user had to take out some component and wash it off regularly. Industrial-sized ones have "rappers" which bang on the collector plates to knock the dirt off. How does this thing do that?
> She adds that there are concerns around efficacy and logistics like how often something like this would need to be cleaned. But Ursem himself has used the same technique in hospital purification systems, parking garages, and along roadsides.
Any large precipitator needs a way to get the solids off the plates and into a collection bin. Home precipitators typically lacked that; the user had to take out some component and wash it off regularly. Industrial-sized ones have "rappers" which bang on the collector plates to knock the dirt off. How does this thing do that?
[1] https://www.youtube.com/watch?v=BdRk3op2zpE