This fan exceeded my expectations, it really is aluminum and it really blows. I bought it to place inside a large industrial lathe cabinet that will contain a VFD drive. This fan will keep it all cool. It exceeds the air circulation levels required for my application, that makes it perfect.
It does make some noise, but that is fine as my large lathe makes a lot of noise so this fan will not ad much and thus is acceptable as far as noise is concerned.