The factory filled with the familiar noise that we'd all heard just a little moment ago.
The noise of the machinery booting up and starting to move, filling the air with the low hum of its parts defeating the force of resistance as they stirred into action.
The factory-wide air circulation units woke up first, once again pushing the air inside to move along specific, predetermined paths. Then, the power module filled the air with spiritual energy it produced from the electrical energy. Next, the condensers made sure to pack as many units of Qi as they could into a single unit of air, before the QI-rich air.
Next, the condensators in what used to be a freezer stirred into action as well, introducing a proper source of fresh air, one that first had to go through the barrier of first passive and then active filters, removing all the possible impurities from the air itself before it was used as a carrier of the spiritual energy down the line.