I'm not entirely convinced of the product (there were tons of defects which I will post shortly), but I do like the concept. Although I haven't tried it, I would like to see how the miner would react in a setting where each one is individually enclosed with cold air intake being drawn from an indoor AC unit (at 21-24 C) and the hot air exhaust being blown outdoors (at 68-75 C). I believe this way is more controlled for airborne dust and operating temperatures. It also makes sense because then you are not cooling an entire room with an AC unit and simultaneously heating it up with the miners' exhaust.
Although I haven't empirically measured db, I can tell you that the sound is also dramatically more quiet. I just can't decide if its a better idea to have ventilation set up and try to match an exhaust fan to pull the hot air out as fast as the miners blow it out, which would in turn make the sound factor irrelevant but would require a much larger investment and structural changes to the building.
So how is the box working for you now?
Still usable?