The Holocaust Historiography Project
Auschwitz, by J.-C. Pressac
Photo 5:
(Photo by the author)

The Northwest entrance to Block 3. On the first floor on the right is one of the gas chambers, the ventilation opening of which can be seen.
Photo 5
Photo 6
Photo 6:
(photo by the author)
The outside of the ventilator with its cover.The hydrocanic
gas was expelled to the ambient air of the camp without
any particular precautions being taken.
Photo 7
Photo 7:
(Photo by the author)
Interior view of the ventilator hole. The extractor fan has been
removed and there only remain three bolts that
held the electric motor.
Photo 8
Photo 8
Photo 9
Photos 8 and 9:
North-east part of one of the disinfestation gas chambers on the first floor of
Block 3. On the right the entrance door, in the center, the hole where the
extractor fan was, to the left, one of the double windows.