Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Can this blower be used with a variable speed switch
Document: I bought this to replace an old bilge blower that stopped working. It's been working fine for the past 6 months or so and moves a good amount of air.
This is a nice blower for fitting in the boat I'm building, except that it's a little bigger than 3&#34; in diameter and won't fit into the pvc piping. Will have to use a hose instead.
Much more powerful than the old one that burnt up; a little noisier, but  i see that as a plus since i hear the blower i don't leave it running - the reason the old one burnt up!
The blowers on my 1997 Chaparral 260 Sig were very loud, and by the looks of them, quite original (yes, there were two on my boat from the factory). These are the &#34;3000&#34; series, which was what was in the boat, so direct replacement. I put a rubber pad between the blower and the fiberglass to eliminate resonance.
the item i ordered was exactly what i was looking for,delivery was on time.GREAT JOB!! !
Works well.
Vey nice fan. Small but has a big punch or air. Been running snice I got it with out hiccup
Use these on a Polaris ranger to help with seat heat and it does make a difference. Paint 2 of them black and use them to cool the cab. Really moves the air but noisy..
Took about an hour to replace.
Though I am not using it for its intended purpose. I am trying to push air through 100 feet of 3 inch hose. I think that is overworking it and it is noisey.
Answer: no