[dredmorbius]

See: https://venta-usa.com/product-category/airwashers/

They do an excellent job of humidifying the treated space, which may or may not be ideal.

[littlejohnny]

dredmorbius, do you own one? At what frequency do you normally change the water?

[dredmorbius]

No, I don't. Ran across them discussing filtering options recently.