There has been plenty of debunking of Germar Rudolf. Here is acclaimed American chemist and witness at the Irving v. Lipstadt Trial Richard J. Green debunking Rudolf in his article Leuchter, Rudolf, and the Iron Blues and once again in another article, Chemistry is not the Science: Rudolf, Rhetoric and Reduction. Further debunkings of Rudolf can be found on Holocaust Denial on Trial, especially Robert Jan van Pelt's report on the gas chambers for the Irving v. Lipstadt Trial – because in most parts Rudolf just parrots the ideas of Faurrison and others.

A further debunking can also be found in-depth in Till Bastian: Auschwitz und die 'Auschwitz-Lüge': Massenmord, Geschichtsfälschung und die deutsche Identität 2016 as well in the trial materials from Rudolf's trial in Mannheim in 2007 when he was sentenced to two and a half years in prison for inciting racial hatred.

The fact alone that Rudolf – like Leuchter – damaged the Auschwitz site to steal "samples" should one make highly doubt anything of what he does, if not for the fact that people who steal and lie are generally doubtful but also for the fact that the integrity and veracity of the samples you use for scientific research can not be really guaranteed if you smuggle them in your dirty underwear.