I am doing a house up and when I have taken the painted wallpaper off it has taken about half of the paint off the wall, would a drywall sander remove the rest so I am back to bare plaster.
If you got a big sander on the job you wouldn’t be able to see your hand in front of your face within minutes because of the dust. As long as it’s fairly flat it’ll take a coat of paint.
The one I’m looking at hiring is connected to a vacuum so that should help with dust