Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: What size are the intake and exhaust hoses?
Document: This saves energy and extends the life of the compressor.Please make sure that the water tank is not full. Also, please make sure that the air filters are clean and there are no bends or leaks in the exhaust hose.The effectiveness of the portable air conditioner can be affected by many different factors such as size of the room, air flow, humidity, number of windows, heat generating appliances and people in the room.
This is my first  purchase of the portable AC. The unit is put together very well. Put it to together is very straight forward. Everything fit it perfectly. The hoses work very well as it designed. My window size is taller than normal so I had to make an additional board to work with the extended window kit. The AC has very nice an professional looking.My bedroom size is around 14 x 14 x8.
The exhaust hose needs to be insulated--generates a lot of heat. Both exhaust hoses take up a lot of room. Installation is pretty easy. We will see over time if it holds up.
You can also move the unit, but it is really not practical to go too far from the window due to the hoses being difficult to bend and the heat generated from the exhaust hose reducing efficiency.For the exhaust hose, it should be insulated. It does generate heat in the house reducing efficiency. We have tossed a wool blanket over the hoses to reduce the heat transfer back into the house.
Since I have been using and installing Portable Acs for more than a decade, I have found the most efficient way to install the AC.The exhaust hose could be venting 130 Degree heat. The hose can get very hot and overwhelm any AC. Just a tip, wrap the exhaust hoses with Reflectix Insulation and Tape. Try to double or triple wrap the hose so that there is no heat escaping into the room.
I had to customise the window kit slightly but I am very pleased as my windows insect screen fits outside the intake and outtake preventing uninvited guests. I have yet to put it through the paces of Summer, but so far pleased with my purchase.
Now overnight the temps cooled which helped and the sun will wreak havoc today so I too the intake hose and unhooked it so it would be pulling in cold air from inside the house and cooling it rather than cooling the hot air outside and making it work over time.
big and bulky4. don't think it will cool room size as stated
Much cheaper to build and fashion to size using basic materials and tools.
If they were to put the intake in the front and redesign the vent, this would be a much BETTER unit. The unit is costing us about an additional $30 a month on our power bill, but when it's 104* out, this unit will cool you down if you stand directly in front of it. THREE STARS is the best we can rate this for south Texas use. If you absolutely must have a portable, this is a decent unit.
Answer: They are approximately 5.25" diameter each.  I'm not sure about the length, as my husband put them away for the winter.  I believe they are about 4 feet long each, but I do know you can get couplings and extensions if you need them (we didn't).  I'm pretty impressed with the product.  We feel so good about this unit that we are going to put permanent holes in the base of our sunroom so that the installation is permanent.  The first season was a 'dry run' and my husband had cut holes in plexiglass and installed it that way in our oversized windows.