Pure AK End of Flower

I believe that my air exchange, which is through my air filters, is performing worse as time goes on and the filters collect particulates. The weather outside is cold, but we usually have the AC on year round until now. So fighting both the filters and lack of cooler air the AC usually delivers. In response I disconnected the second light and moved the first light higher so the plant can finish up. This is probably going to be the last week, then I harvest. No more nutrients being added - just water. I'm not a total believer in the 48 hours of darkness but going to end with that on days 46-48. Currently on day 42 at the time of this entry. UPDATE - I normally wouldn't do much trimming at this point, but since I already stressed the plant with too much heat today, I added a bit more stress and removed some dying fan leaves and some older leaves to prevent mold and get more light to lower nodes. Hopefully that wasn't a mistake so close to harvest. About to find out.