Ok, so there was no second layer of the Matrix. It was actually outside, but still everyone was fooled by the film in the helmet to clean? Well, I guess the air is poisonous, and might make them delirious too.
I was wrong, I'm not afraid to admit it.
Still, their wastefulness with their resources makes no fucking sense. And why don't anyone ask themselves how they make the PCs without any strong magnifying glasses? And where are the bodies of all the previous cleaners?