I recently had to repair a ceiling that had a previously been covered by fluorescant lights and a dropped ceiling system. I could not believe what a fabulous and DUST FREE job my 125 and CT Mini did on that ceiling. I skim coated it, knocked it down with 120 then 180 and final spot sanded with 220 grit and got a really smooth finish and no dust. Not only that, but working overhead with carpal tunnel in my right hand concerned me, but the ES 125 was no problem at all. An oustanding tool that I'm now using to sand drywall prior to paint - good bye and good riddance pole sanders!