ventilation, ruck or airforce???

Hey people, just a quick one,
Was wondering if anyone had used both the airforce 2 extractor fan and the Ruck ISOTX 150mm Silent Metal Cased Box Fan? And if so which would you say is the one to go for? Which is quietest etc and which did you personally prefer? Any helps appreciated!
Cheers guys

Never heard of them but ive got an RVK inline fan 6 inch for extraction and its mega quiet with my fan controller!