Replaced a ceiling mounted one that made the plasterboard vibrate with an inline fan. The inline fan is up in the attic and ducts through the roof. The new fan extracts 3x as much air and is much quieter.
Still need to make good the ceiling, but that’s tomorrow*'s job.
*Tomorrow in this case may not actually be tomorrow.
My bathroom is covered in massive spikes of the stuff, not even pebbles or “texture” like 3-4cm spires of plaster spikes.
You have my sympathies. Our hall, stairs and landing have textured plaster on the walls above the dado rail. We used a random orbital sander to take the worst peaks down and then skimmed over. Sanded when dry, re-skimmed, sanded, primed then two coats of paint. A one week job took three. It still looks a bit shit, but it’s way better than it was. We are still finding bits of the dust when we move a bit of furniture.