Still trying to find a way of using these rooms. Picked this one over the usual residential place, as a business seemed safer than a random person given the politics, and, more importantly, there was a solid table and chair. I cleaned out as much of the accumulated dust from the climate control as I could reach, wiped down all the surfaces, and cleared the drains (no chemicals), but the air still feels bad, and there are some corresponding systems. (To understand the nature of a place, watch the way your physical and psychological mechanisms function.)
Wind from the south in the AM brought clean air, but the shift to the west and the heat of the afternoon made things stale again. Hard to tell if the the bad things are coming from inside or outside. Likely a bit of both.
Since there turned out to not be a laundry room, it's hand laundry for the most part, a skill I acquired from the (also peak tourist--summer) garret across from the economics college in Bucharest. Part of the difficulty is that some shenanigans a couple of months ago left me with a bit less of a reserve than I'd like, and I couldn't book the last two places sufficiently in advance.
Onward.