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 Fan be used to blow air vertical postion.....pushing air straight up?
Document: Yes, this one would be ok if being used in an application where it can be hidden, such as behind drywall. I went with a 'Original Can Fan-brand and boy what a difference! Even with the lower CFM rating, the Can Fan puts out just about the same if not better air then this one did. Overall, this unit is CHEAP.
WOW! I must say.. This thing can move air! Its amazing!There are other 6&#34; inline fans that can do 400CFM, but this does 530!?! Amazing.I used a 4&#34; Fan (170CFM) and this 6&#34; is about the same noise level. Super Impressed.I am using with the SE Step Less Speed Controller and it works great!and as always with Amazon, Received product on time.
I recently installed a new register in my family room open area. This area had an imbalance of 4 degrees from the sleeping areas. The company that installed the new register used flexible duct for the run. With 50 feet of flexible duct (not the best in transferring air) compounded with having to snake that duct around several columns, the result was a disaster. The area increased by 1 whopping degree!So my next solution to the problem was to install a regular 240 CFM inline fan.
For the price this fan is a great deal. I was surprised how quiet this fan is compared to other fans that I have used.
Good fan but it started making noise after a couple of weeks. Turns out a piece of backing from the tape used to secure the ducting had gotten in the line somehow. This is a great fan at a great price
these fans are very nice. they suck and blow wonderfully. high CFM. they are pretty noisy though. but the airflow is worth it.
Noise level is acceptable if insulated kevlar flex ducts are used (metal ducts transfer noise more readily). I have a speed control installed, but I seldom use it as I like to have the fan on high to utilize its full potential (that's why I purchased the 6&#34; fan versus the 4&#34; fan).This is my second  M-6 fan ( the first one had an impeller problem).
That small fan was hardly even noticeable whereas this new guy is literally a jet stream of air blasting through our band room.
The fan claims a higher than average CFM and it definitely moves more air than similar fan I own. It's also quite quiet. The reason it didn't get 5 stars is the hanging bracket is inconvenient.
tried others with no improvement to air flow. this unit really works as it actually is boosting two rooms 30 x 12 and 15 x 12 with room to spare. wish i had found this before i wasted 60 bucks on a trash fan.
Answer: no