Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: What is the material?  Is it plastic, metal, etc.?
Document: I bought this to replace a very old very rust metal one andit seems to be ok. Only gave it for stars because when you close it there aregaps that are larger than I would like and also seems like they couldhave used a bit heavier gauge plastic.
We have an evaporative cooler in our mobile home. The old diffuser was nasty and had been unsuccessfully painted in some past life. The new one fit right on, is pristinely clean, and shoots the air right where we want it. Best of all, it cost more than 50% less than the identical product from a mobile home specialty supply catalog. Great bargain for just what I never thought I'd find on Amazon.
This diffuser greatly improved the air flow from our cooler. The one it replaced directed air in one direction only. Improved comfort is appreciated.
So far so good, our tenants are very happy with the air circulation now. It made one of the rooms much cooler and therefore more rentable! Easy installation too.
I was surprised how hard it was to find a swamp cooler grill, this was perfect! Glad I found it!
I am very happy with this ceiling mount grill. It was a perfect replacement for my old dirty, discolored one. It was shipped quickly without any problems. I would have no problem ordering from here again.
Cooler grill was easy to install and looks good. Grill louvers are easy to adjust and remove for cleaning. Only suggestion would be to have grill available in other basic colors.
Blows the air around the house instead of straight down at one spot. I kind of miss the cool spot, but this is way better.
Answer: no