I worked like a dog all weekend, Saturday pouring concrete and Sunday cleaning out the shelter and replacing the ozone generator bulbs. I brought up all sensitive electronics down there pursuant to completely detoxing the interior and cleaning up the remains of the black mold.
I was planning on Sunday night to drill a bunch of wide holes in the hydroponics lab for planters but I was so exhausted I just collapsed in front of the television and could not get up again.
It has taken me seven years to come to this decision but I am convinced now that a shelter of my design (taken from Oak Ridge laboratories plans released under FOIA) has to have exhaust valves on both the primary and alternate entrances that continuously pump the hot air that rises up these shafts to the exterior. Otherwise long term inhabitability is just an impossibility. From reading the original documents carefully I know now that this style of shelter was tested under live nuclear blasts in Nevada but may have never been tested for long term inhabitation. Luckily I purchased cheap blast valves years ago with this very modification in mind. If you look at the shelter layout it becomes obvious that however superb it might be at surviving an air burst, it is going to suck at habitability without serious changes introduced into the ventilation scheme like I have described. Otherwise after I complete this cleanup I am going to have the same problems all over again. I believe when not inhabited you could get by on passive air turbines to draw the air out but once it goes live it would need power fan exhausts running.