attic filter/air con?
I've just been up in my attic properly for the 1st time since I moved in 2 yrs ago and there's a strange machine in the corner. it's a big green box with what look like filters at each end, full of dust. It's attached to a power pack of some kind and
I am not positive but it sounds like an attic exhaust fan. it helps pull the hot air out of the attic in the summer making the house cooler. is it connected to the outside somehow?

Only the wrap changed! The complete foiling of the body is done in blue and green/matte by Cam Shaft. The technical improvements include a sport air filter by K&N, a manifold, down pipe and special sport catalysts from the HJS.