I have the whole suit to that Steve, mine is red version. The whole suit is powered up by a power tool battery ( but don't have the charger, so none of the power works now. When I got it it did have some power left ). It had a fan in the back pack, and the air actually goes through the hose from the pack to the helmet.
I also have the complete pilot helmet, flight suit. and a part Kilrathi.
Yup, agree 100%, not a great movie, but costumes are super cool.
Here is the thing, some times the worst movie has the best prop and costume