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: Is the 3-position switch included with this unit?
Document: This unit is very quiet. I originally thought I won't be able to hear it at all so I asked the installer to combine the light and fan switch together so I will remember to turn it off. I realized it isn't really like complete silent. But, that is OK. It is still very quiet. It really takes out all the moisture.
Turns out I have found it useful to have the light, fan and night light individually switched. You can of course just wire them all together to operate on one switch, but I suggest that you do the extra work to individually wire each function. I attached 4&#34; vent pipe to this unit to vent through an attic wall. I suspect that if I used 6&#34; vent pipe (which this unit can accept), the fan would move the air even more quietly.
Very quiet!!!!! The light is bright enough. Again a purchase that I wish the manufacturing company had included the wall mount.
The switch for the fan also lights a low-wattage night light so you can free-up a receptacle and easily clear the air during an early-morning visit.Super product!
Bigger than I expected and took a little work to get in, but solid unit and great quality. No longer have an issue with mirror or windows collecting any condensation.
I got this fan/light to replace a noisy 40 year old fan/light in a tiled shower area. It has been in use for 2 months now. The fan is indeed quiet. It moves a lot of air. The quality of this unit is excellent. The detailed installation instructions are what you would expect from a competent manufacturer.
Then connected the air duct and electric and since this was for the water closet I wired the night light to the main lights.Put the unit up through the larger opening and screw it to the 2x4 that I had installed early. Very solid  no noise moves a ton of air and does not move a bit of drywall mud to repair the screw holes  and it is all ready to be painted.
We replaced our other bathroom fan/light because it wasn't strong enough to pull out the moisture. My husband and I put this one in yesterday and it works awesome and is really quiet. Just be sure to read another review where a guy details his experience of installing one. His review helped us a lot. We didn't install the night light as I didn't have another switch dedicated to it.
I installed it myself. I'm a Programmer Jim not an electrician.I do electric too.Very easy to install and I ran each device (light, night light, fan) to their own switches. I used a lutron timer switch for the fan and it worked fine.The fan really is quiet. Amazing.Well worth the price.The light is VERY bright. Its excellent.
I think one of the tricks to keeping the noise down is to install it as securely as possible. If there are any vibrations you're going to get extra noise. Try to secure it directly to a rafter if at all possible.We also installed an 80cfm Panasonic Whisper Fan in my girls bathroom at the same time to replace an original unit that was noisy and provided very little ventilation. That unit is almost dead silent and  also does a great job venting the room.
Answer: yes