And they were in sealed gas chambers!
Imagine the luck of the Nazis that they miraculously managed to carry out thousands of gassings in massive outdoor rooms in polish winter with wooden doors and were able to remove the bodies instantly even though hydrogen cyanide stays lethal for so long afterwards!
Of course any intelligent person knows the holocaust is about as real as bigfoot or viruses etc.
something else totally missing from "survivor" accounts are the ancilliary deaths among inmates and guards if the bodies were really handled the way accounts describe. nor are the side-effects of a non-lethal dose of cyanide ever mentioned in any of the
accountsfables.