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: how many cfm this unit have?
Document: Worked fine and is quiet. Had to reverse the motor, but that was easy. Hopefully it last for many years.
Fan works perfectly. One purchasing idea - make sure you measure depth/size of fan motor. This was a little confusing as there are many to choose.Easy transaction.
This fan worked great and it was quick to install. It ran quiet and seemed to run at 70 cfm but not sure. Not difficult to replace
You will not realize how loud you old fan is until you switch it with this unit!
It was much easier to replace just fan than remove the entire fixture from the ceiling. cost of this replacement fan was about the same price as a complete unit.
used to replace the fan motor in a hydronic  under cabinet kickspace heater unit. much cheaper than replacing entire heating unit.
Very easy to replace. Fit perfectly. Great value. Compared to the hassle of replacing the whole unit, this is by far the preferred way to go.
Quickly installed to replace old unit. My only complaint is the plug is slightly larger than the old one so it was a little struggle to make it fit.
I was going to replace the unit but this is so cheap I thought if try it. Very easy to install. It was the correct fit. Experience level required: Novice
Its a perfect fit does everything its supposed to. By  doing this I didn't have to buy the whole unit, and didn't have to go up into the attic.And saved money all at the same time.What else can I say? Don C.
Answer: yes