Has a 'reservoir' on the roof so you can exhaust air out the top but it's got a cover over that so it kind of masks the sound of that air coming out? This is something I don't know if I've seen implemented - an air 'reservoir' that gives a notable gap so hot air can be exausted out of the top but it's not straight 'outside' but rather goes into a chamber at the top? Means you can close the top of the case but still safely exhaust warm air out of it. Wondering if that's a 'thing'? Thanks!