Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: can this be used to sand concrete?
Document: I used to sand my new ceilings work great I attached to my 16 gallon vacIs 99% dust free just make sure vac is emptie before start using itAlso is ligth weight and price is great
I will never sand drywall again without this tool. I used it with a 20 gal shop vac and it captured virtually all of the sanding dust. Be sure to keep and extra filter for your shop vac so you can complete the job without stopping  to clean your filter.
This sanding attachment worked absolutely wonderful, I was able to use it to sand the ceiling 3&#34; from my face and NOT wear a mask!! I did put a new filter in my shop vac.. It can also be used to sand off old paint,but the screen wears out quickly. I've used it for about 20 hours with no problems.
I did not have much success with the pole on, so I just used it with out the pole and climb up to where ever I had to sand. When you try to sand with the pole the wide way on the head it keeps flipping over. If you sand the long way or 45 degree angle it works fine. So great to not have all that fine drywall dust. You have to have a good vacuum  made for drywall dust.
This product is great for the do it yourselfer or the professional. The fact that there is virtually no dust while sanding drywall compound is amazing! Although using the pole attachment is awkward, I would recommend getting it because you are still able to hand sand without using an extension pole. I found that it took a while to get used to but it was easy to figure out once I got started.
My wife is a clean nut. She hates dust and a mess in the house so hates house remodel projects. I bought this and built a water filter out of a 5 gallon bucket and some PVC pipe and used my shop vac to sand drywall in a couple rooms that I remodeled. I had very little dust in the house afterward which made my wife happier and kept me from having to clean up so much.
the sander works great, i have tried other hand sanders with disappointment, the suction is good but does not stick to the wall so you can move it around and the moveable head makes it easy to sand any area, plus you can use with your hand or a pole, works great either way. i used a regular shop vac with a bag in it and had no dust in the air. i am in the remolding business and needed a inexpensive sander that doesn't leave dust everywhere and this is it.
Just got done using this on a drywall re-work job in my kitchen. Used it to sand the texture before painting. I was a little skeptical but found that it lives up to its high ratings by other users. It got about 95% of the dust. The stuff it didn't get was a few larger pin head size chunks that fell to the floor and were easily vacuumed up. Go slow when you use this and it will get the sanding dust. A great $25 dollar investment.
I used this to sand a ceiling that had a couple of sheets of new drywall with joint compound applied. I was able to attach my telescoping handle that I use with my paint rollers and after a couple of minutes getting used to maneuvering it I was able to sand with minimum dust generation. For the price this is a great addition to the tool set for a handyman. Particularly useful when working in a finished space where you don't want to generate a big mess.
I had to sand a lot of joint compound repairs on plaster. While this thing didn't leave any dust, it didn't really sand well. It was hard to apply enough pressure maybe. I don't know why it didn't sand well. I used 150 grit.When you hold it at the base to push your hands get shocked with static electricity. At least mine did...A lot.I ended up having to go over a lot of areas with a sanding sponge which sanded great, but made dust.
Answer: yes