In a multiplace chamber, people breathe through masks or hoods. Pure oxygen is pumped into a pressurized chamber, mask or hood and people inside breathe in the concentrated oxygen, which enters ...

In a multiplace chamber, people breathe through masks or hoods. Pure oxygen is pumped into a pressurized chamber, mask or hood and people inside breathe in the concentrated oxygen, which enters the ...

Those who were deemed to be losing weight too quickly were sent to the gas chamber, Susan recalls. Image: Prisoners from Hungary arrive at the Auschwitz concentration camp in spring 1945.

If she survived the journey, she would have been immediately dispatched — along with all the other children on the train — to one of the four gas chambers active in the camp during the summer ...