Of course my bad for lack of information at work so was busy thinking about other stuff anyway the tent I'll be getting will only be around 2 x 1.5 feet so if you reckon the SRD100 is a decent fan I'll have a look at that. Also what is the wiring like with it as it's meant to be a bathroom extractor fan I'm guessing it's not just a plug aha thanks!That depends entirely on the size of space you need to ventilate.
I have an inline fan which is very quiet but not powerful, and I have an RVK which is very powerful but is definitely not quiet (even though it is sold as a quiet fan). Noise depends more on fan size and speed than brand...until you start comparing fans with equal flow ratings..