I had the A/C going most of the day in the darkroom trailer. I went through 1 1/2 of the 2 Jackery batteries. I could not get the temp down below 27.2 C even with constant closing of the man door.
The A/C did help as I was able to place my hot sweaty face into the cool air. It did help lower the overall in the trailer buy probably 3-4C but I still had some heat related artifacts on some plates. It was not as bad as years past but the were still there.
Maybe I can place the collodion and decay in front of the A/C blowing cool air. That might help. I am not sure how to cool the silver any.
I am unsure what will happy on the really hot days.