Flaws and Limitations in Chemistry of Auschwitz

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Re: Flaws and Limitations in Chemistry of Auschwitz

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Nessie wrote: Sun Nov 02, 2025 3:19 pm
The Topf & Sons engineer, who designed the ventilation system, said that it worked to remove the gas with a 10 times exchange, sucking out the gas and pump in air. I have checked that claim, to see it is possible. The answer is, yes. I have two sources that say a 4 times exchange is enough to purge a space of poisonous gas, using a fan or other method, to get rapid removal of the gas.

You raise the issue of the vents and I know that you hate it when I start to introduce evidence of usage, but, the eyewitnesses do report that the system did not work to completely remove all the gas. Bodies trapped pockets of gas and they had to wear gas masks.

Clearly, because of the spacing of the vents and the corpses trapping gas, Schultze's ventilation system did not work as well as he believed. But, it would work well enough, for gassings to take place.
Idiot. The 10 air exchanges is a hypothetical number based on the fan size, the room size, plus additional very crucial assumptions (like well mixed air). Those assumptions would not have applied to the gassing scenario.

IF the old and new air is perfectly mixed, you will remove about 63% of the "old" air with each exchange, i.e., the amount of old air remaining should diminish exponentially (.37^n). Four air exchanges is pretty good under standard conditions with good air circulation. But in a room full of bodies and with the vents backwards and too close together, and with the extraction vent blocked, the 63% ain't happening and the math changes completely.
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Re: Flaws and Limitations in Chemistry of Auschwitz

Post by Nessie »

Archie wrote: Sun Nov 02, 2025 3:48 pm
Nessie wrote: Sun Nov 02, 2025 3:19 pm
The Topf & Sons engineer, who designed the ventilation system, said that it worked to remove the gas with a 10 times exchange, sucking out the gas and pump in air. I have checked that claim, to see it is possible. The answer is, yes. I have two sources that say a 4 times exchange is enough to purge a space of poisonous gas, using a fan or other method, to get rapid removal of the gas.

You raise the issue of the vents and I know that you hate it when I start to introduce evidence of usage, but, the eyewitnesses do report that the system did not work to completely remove all the gas. Bodies trapped pockets of gas and they had to wear gas masks.

Clearly, because of the spacing of the vents and the corpses trapping gas, Schultze's ventilation system did not work as well as he believed. But, it would work well enough, for gassings to take place.
Idiot. The 10 air exchanges is a hypothetical number based on the fan size, the room size, plus additional very crucial assumptions (like well mixed air). Those assumptions would not have applied to the gassing scenario.
Sorry, but the 10 times air exchange is not a hypothetical, or an assumption, it is what Karl Schultze, the Topf & Sons engineer stated the system he designed, was operating at.

https://forum.axishistory.com/viewtopic.php?t=61650

"The ventilation installation provided for a ten-times air exchange; it served to suck out the gas that had collected and pump in fresh air. The pipes of the ventilation, which I personally constructed for the gas chamber, were immured in the walls of the chamber."

Vent covers have been recovered from the ruins of Krema II, six of which were tested in 1945 and found to have traces of HCN. There is a blueprint of the Leichenkeller, showing the ventilation system.
IF the old and new air is perfectly mixed, you will remove about 63% of the "old" air with each exchange, i.e., the amount of old air remaining should diminish exponentially (.37^n). Four air exchanges is pretty good under standard conditions with good air circulation. But in a room full of bodies and with the vents backwards and too close together, and with the extraction vent blocked, the 63% ain't happening and the math changes completely.
I agree, the 4 times exchange recommended for purging a room of poisonous gas, in the context of a homicidal gas chamber, does not seem enough. Schultze believed that 10 times was enough, but evidence is that is incorrect and it would have needed more to completely clear the Leichenkeller.
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Re: Flaws and Limitations in Chemistry of Auschwitz

Post by ConfusedJew »

Stubble wrote: Sun Nov 02, 2025 1:41 am Read page 336 'The Chemistry of Auschwitz' by Germar Rudolf
I looked at this section. If I am understanding correctly, Dr. Bailer argued that the Prussian Blue in the delousing chambers was likely painted on the walls. Rudolf makes arguments against that. Richard Green argued that while it might have been paint, he still doesn't agree that Prussian Blue would have formed.

https://phdn.org/archives/holocaust-his ... affweb.pdf

Green adds that he doesn't agree that Bailer was definitely right, but he thinks Bailer's hypothesis is "plausible". He still believes that it is "highly improbable that Prussian blue would have formed with reasonable efficiency in the gas chambers."

Green argues that there were 3 key differences in the conditions of the delousing and homicidal chambers:

1) The gas chambers were washed with water after gassing.
2) The residence times of HCN in the delousing chambers were much longer than in the gas chambers.
3) van Pelt estimates that 350,000 people were killed in morgue 1 which would have been about 175 gassings for 117 hours of exposure, not all at the maximum exposure because of the decrease owing to ventilation. In contrast, delousing chambers BW5a had a minimum of 450 gassings of approximately 16 hours each for a total of 7200 hours most of which was at the full concentration.

This is why each of those reduced the likelihood that Prussian Blue would form.

1. Hosing would remove soluble cyanide species and precursors from wall surfaces reducing the likelihood of later accumulation of insoluble iron–ferrocyanides (Prussian blue) on those surfaces.
2. Brief homicidal gassings (on the order of minutes per operation instead of hours or days) give far less time for ferrocyanide complexes to nucleate and “migrate” into plaster. So heavy blue staining in delousing rooms but not in homicidal chambers is expected.
3. Cumulative dose-time strongly favors visible iron-blue in delousing rooms.
Further suggested reading from 'The Chemistry of Auschwitz' by Germar Rudolf

Formation and Stability of Iron Blue p181-226

Zyklon B for the Killing of Human Beings p227-298

(Special attention to 227-236, 241-269)
I'll look at these but I need you to let me know what point you are trying to make by referencing them.
With regard to explaining the inexplicable, feel free, why would one not expect Prussian Blue to form in the various homicidal gas chambers, furthermore, if it is indeed absent, why was it detected by various labs? The issue isn't that there isn't Iron Blue, it is that the levels are not compatible with the claim.
What labs detected Iron Blue in the homicidal gas chambers?
I also want to be sure to note, if you weren't saying iron blue can't from on red brick, concrete, or plaster, I have no idea what the hell you were trying to say, because, the implication from your post is that iron blue could not have formed at the liken keller of Auschwitz Birkenau Kremas II and III, because they were made of 1) red brick, 2) concrete and 3) plaster.
I'm not saying that, I have seen no reason so far to make that argument.
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Re: Flaws and Limitations in Chemistry of Auschwitz

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Archie wrote: Sun Nov 02, 2025 4:57 am Just to be clear, are you claiming that the Prussian blue in the fumigation chambers (below for example) is NOT due to Zyklon B usage?

If the above is due to Zyklon B usage, then how would this not be "relevant"?
I never claimed that Prussian Blue in the delousing chambers was not due to Zyklon B usage. We've been over this many times. The environmental conditions of the homicidal chambers and the delousing chambers were very different so Prussian Blue wouldn't have formed in the homicidal chambers while they formed in some of the delousing chambers.

Why didn't they form in all of the delousing chambers?

Let me get back to the other arguments in a separate post. It's much clearer when I don't get like 12 arguments thrown at me in a single post. Hard to keep track of it all.
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Re: Flaws and Limitations in Chemistry of Auschwitz

Post by ConfusedJew »

Archie wrote: Sun Nov 02, 2025 3:48 pm
Idiot.
This is rude and against the rules of the forum.
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Re: Flaws and Limitations in Chemistry of Auschwitz

Post by ConfusedJew »

Nessie wrote: Sun Nov 02, 2025 3:23 pm As CJ pointed out on page 1 of this thread, you cannot come to a definitive conclusion, based on the chemistry alone.

As for worthwhile commentary on the chemistry, none of you here are chemists suitably qualified to review what the actual chemists are arguing about. You are rank amateurs, who confidently assert you know better.
Even the strongest evidence will never provide absolute proof of anything. You can always hold a magnifying glass to evidentiary blemishes or find some gap that weakens the body of evidence.

You could do this for the most basic and widely accepted historical events. I just find it fascinating how these people think.
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Re: Flaws and Limitations in Chemistry of Auschwitz

Post by Nessie »

ConfusedJew wrote: Sun Nov 02, 2025 4:46 pm
Nessie wrote: Sun Nov 02, 2025 3:23 pm As CJ pointed out on page 1 of this thread, you cannot come to a definitive conclusion, based on the chemistry alone.

As for worthwhile commentary on the chemistry, none of you here are chemists suitably qualified to review what the actual chemists are arguing about. You are rank amateurs, who confidently assert you know better.
Even the strongest evidence will never provide absolute proof of anything. You can always hold a magnifying glass to evidentiary blemishes or find some gap that weakens the body of evidence.

You could do this for the most basic and widely accepted historical events. I just find it fascinating how these people think.
They certainly do operate under the delusion that one piece of evidence is enough to prove, or disprove something, when anyone who has any knowledge of criminal or historical investigation, knows that nothing, let alone something as complex as a mass murder, can be proved, or disproved, with one piece of evidence.

They bang on about science and the scientific method, and then seriously think that low levels of residue, is, on its own, with no corroboration, is enough to prove no mass gassings. I suppose the scientist Rudolf acts as if it is enough, but even scientists can get it wrong. However, he did conclude his book by stating he may be wrong and including a chapter on what other work is needed. But, by then he had nailed himself to the denier tree and that his is way of making a living, so he cannot cut that supply off by admitting he made a mistake and the evidence from the residues need corroborating.
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Re: Flaws and Limitations in Chemistry of Auschwitz

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ConfusedJew wrote: Sun Nov 02, 2025 4:37 pm
Stubble wrote: Sun Nov 02, 2025 1:41 am Read page 336 'The Chemistry of Auschwitz' by Germar Rudolf

I looked at this section. If I am understanding correctly, Dr. Bailer argued that the Prussian Blue in the delousing chambers was likely painted on the walls. Rudolf makes arguments against that. Richard Green argued that while it might have been paint, he still doesn't agree that Prussian Blue would have formed.

https://phdn.org/archives/holocaust-his ... affweb.pdf

Green adds that he doesn't agree that Bailer was definitely right, but he thinks Bailer's hypothesis is "plausible". He still believes that it is "highly improbable that Prussian blue would have formed with reasonable efficiency in the gas chambers."

Green argues that there were 3 key differences in the conditions of the delousing and homicidal chambers:

1) The gas chambers were washed with water after gassing.
2) The residence times of HCN in the delousing chambers were much longer than in the gas chambers.
3) van Pelt estimates that 350,000 people were killed in morgue 1 which would have been about 175 gassings for 117 hours of exposure, not all at the maximum exposure because of the decrease owing to ventilation. In contrast, delousing chambers BW5a had a minimum of 450 gassings of approximately 16 hours each for a total of 7200 hours most of which was at the full concentration.

This is why each of those reduced the likelihood that Prussian Blue would form.

1. Hosing would remove soluble cyanide species and precursors from wall surfaces reducing the likelihood of later accumulation of insoluble iron–ferrocyanides (Prussian blue) on those surfaces.
2. Brief homicidal gassings (on the order of minutes per operation instead of hours or days) give far less time for ferrocyanide complexes to nucleate and “migrate” into plaster. So heavy blue staining in delousing rooms but not in homicidal chambers is expected.
3. Cumulative dose-time strongly favors visible iron-blue in delousing rooms.


Copes and bunkum. Reread page 336.
Further suggested reading from 'The Chemistry of Auschwitz' by Germar Rudolf

Formation and Stability of Iron Blue p181-226

Zyklon B for the Killing of Human Beings p227-298

(Special attention to 227-236, 241-269)
I'll look at these but I need you to let me know what point you are trying to make by referencing them.
Is this not obvious? They refer specifically to how PB is formed and how much HCN would be required to be lethal in the prescribed time frame.
With regard to explaining the inexplicable, feel free, why would one not expect Prussian Blue to form in the various homicidal gas chambers, furthermore, if it is indeed absent, why was it detected by various labs? The issue isn't that there isn't Iron Blue, it is that the levels are not compatible with the claim.

What labs detected Iron Blue in the homicidal gas chambers?
You want the names of the labs the various samples were sent to? Is this, critical in any way?
I also want to be sure to note, if you weren't saying iron blue can't from on red brick, concrete, or plaster, I have no idea what the hell you were trying to say, because, the implication from your post is that iron blue could not have formed at the liken keller of Auschwitz Birkenau Kremas II and III, because they were made of 1) red brick, 2) concrete and 3) plaster.
I'm not saying that, I have seen no reason so far to make that argument.
This makes all of the above arguments null. If you aren't arguing that PB wasn't formed, why are you arguing PB wasn't formed?
If I were to guess why no t4 personnel were chosen to perform gassing that had experience with gassing, it would be because THERE WERE NONE.
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Re: Flaws and Limitations in Chemistry of Auschwitz

Post by HansHill »

ConfusedJew wrote: Sun Nov 02, 2025 4:37 pm
I looked at this section. If I am understanding correctly, Dr. Bailer argued that the Prussian Blue in the delousing chambers was likely painted on the walls. Rudolf makes arguments against that. Richard Green argued that while it might have been paint, he still doesn't agree that Prussian Blue would have formed.

https://phdn.org/archives/holocaust-his ... affweb.pdf

Green adds that he doesn't agree that Bailer was definitely right, but he thinks Bailer's hypothesis is "plausible". He still believes that it is "highly improbable that Prussian blue would have formed with reasonable efficiency in the gas chambers."
I know Confused Jew has been banned, and so this won't get a reply but i feel it's worth a response anyway. What CJ has said above is narratively correct, and it's hilarious that the meaning here is lost on him, or perhaps not lost but he is obfuscating it.

Markiewicz omitted the Prussian Blue from the sampling because he didn't know what it was. Dr Bailer being a little more clever realised the bind, and opined it was paint and therefore should be omitted. On a strictly scientific level, both of these eventualites (were we to believe these men) are not necessarily problematic.

On Markiewicz's part (not being a chemist) it's perfectly acceptable to not understand a chemical process, but when performing an exercise to quantify and analyze X-Chemical, and use ignorance to ignore X-Chemical rather than study it in good faith, then he was clearly operating from either incompetence or malice. To quote Rudolf: "Has anyone ever heard that the non-understanding of a phenomenon is a reason
for not examining it?"
On Dr Bailer's part, were the blue splotches indeed paint, then this could also be a viable reason to gather samples around the paint, or chisel it away etc. However it is very clearly not paint! To the point that even a layman can tell this is not paint.

So what we have are two very very different explanations given as to why the PB was omitted from the samples were omitted: 1) I don't know what it is and 2) its paint.

This leaves Dr Green fumbling because he cannot underscore either of them. He invents his own reason why it was omitted.... "that it was unlikely to form". This is not the reason why PB was omitted as per Markiewicz, because he admits he doesn't know how PB would form, so his opinion (had he held it) that it was unlikely, is moot.

So we have three reasons why it was omitted:

1) I don't know what it is,
2) It's paint, and
3) It was not likely to form.

Confused Jew, and modern Holocaust enjoyers have tethered their boat to reason 3 above, given that Dr Green had more time to work and tidy up the mess that Markiewicz had created. This is despite, that was never the reason why the authors of the paper chose to omit them.

Green argues that there were 3 key differences in the conditions of the delousing and homicidal chambers:

1) The gas chambers were washed with water after gassing.
2) The residence times of HCN in the delousing chambers were much longer than in the gas chambers.
3) van Pelt estimates that 350,000 people were killed in morgue 1 which would have been about 175 gassings for 117 hours of exposure, not all at the maximum exposure because of the decrease owing to ventilation. In contrast, delousing chambers BW5a had a minimum of 450 gassings of approximately 16 hours each for a total of 7200 hours most of which was at the full concentration.

This is why each of those reduced the likelihood that Prussian Blue would form.

1. Hosing would remove soluble cyanide species and precursors from wall surfaces reducing the likelihood of later accumulation of insoluble iron–ferrocyanides (Prussian blue) on those surfaces.
2. Brief homicidal gassings (on the order of minutes per operation instead of hours or days) give far less time for ferrocyanide complexes to nucleate and “migrate” into plaster. So heavy blue staining in delousing rooms but not in homicidal chambers is expected.
3. Cumulative dose-time strongly favors visible iron-blue in delousing rooms.
1) Already asked and answered. The earliest available time the walls could be washed after a gassing is after all the bodies were loaded out. If 1 body were removed every 30 seconds on average, this would take 16 hours for a full unload and the walls could be washed. Beside, as has been previously demonstrated, HCN has an extremely high diffusion capacity, allowing deep penetration into masonry extremely quickly. Washing the surface of a wall hours after HCN had penetrated deeply into the capillaries would do nothing except allow for further absorption on subsequent gassings, as the surface is now more damp than before. Finally samples taken from the ceiling which almost certainly would not have been hosed down, are exactly the same as the walls.

2) Already asked and answered. Confused Jew admitted in a previous thread (Forensic Chemistry) that he doesn't see it as a big deal if the pellets fell through the bottom of the introduction columns and lay offgassing indefinitely. This is how three Sonderkommandos described the process. This means, that during the entire load out (or at least until 3/4 the way through until 3/4s of the bodies are removed**) the pellets will be offgassing this entire time. This is 12 hours. A far cry from the "20 minutes" cited by CJ, and alot more reasonable.

This flawed line of reasoning also equates "execution time" with "reaction time". As i have demonstrated above, HCN is extremely diffusive - so even under perfect conditions, were the chamber to be evacuated immediately of all bodies and gas at 20:01 after the introduction of the pellets, this still means the HCN had 20 minutes to diffuse deeply to the interior of the masonry where it can continue reacting irrespective of whatever is happening or not happening in the room.

3) Agreed, and given everything detailed above, had these buildings under gone hundreds of gassings in this manner as described, we would expect to see staining on the order of the delousing facilities.

- Hans Hill,
Layman and lawn enthusiast

**Edit

To clarify why i use 3/4 of the bodies is because there were 4 supposed introduction columns, meaning you have to clear up to 3/4 of the bodies to retrieve those pellets from the last of the columns, presumably one of the ones at the back depending on which way they were cleared.
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Re: Flaws and Limitations in Chemistry of Auschwitz

Post by Nessie »

HansHill wrote: Mon Nov 03, 2025 12:41 pm ...

Green argues that there were 3 key differences in the conditions of the delousing and homicidal chambers:

1) The gas chambers were washed with water after gassing.
2) The residence times of HCN in the delousing chambers were much longer than in the gas chambers.
3) van Pelt estimates that 350,000 people were killed in morgue 1 which would have been about 175 gassings for 117 hours of exposure, not all at the maximum exposure because of the decrease owing to ventilation. In contrast, delousing chambers BW5a had a minimum of 450 gassings of approximately 16 hours each for a total of 7200 hours most of which was at the full concentration.
Add to that reports of painting of the gas chambers, the speed at which they were ventilated and demolition & exposure to the elements. Plus, there were 8 gas chambers, Block 11, Krema I, the two farmhouses and Kremas II to V. Each had differences and similarities and there is much unknown, such as how often was each one used and what did the walls of the demolished buildings look like, inside, after they had been used for a period of time?

The usage of the gas chambers was different to the usage of the delousing chambers, and it is agreed by all, that the residue level of the gas chambers is lower than the delousing chambers. But, that one, single, solitary piece of evidence, is not, on its own, capable of proving there were no gas chambers. It is scientifically and evidentially wrong, to try and use one piece of evidence, as proof.
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Re: Flaws and Limitations in Chemistry of Auschwitz

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Nessie wrote: Mon Nov 03, 2025 1:41 pm Add to that reports of painting of the gas chambers, the speed at which they were ventilated and demolition & exposure to the elements. Plus, there were 8 gas chambers, Block 11, Krema I, the two farmhouses and Kremas II to V. Each had differences and similarities and there is much unknown, such as how often was each one used and what did the walls of the demolished buildings look like, inside, after they had been used for a period of time?

The usage of the gas chambers was different to the usage of the delousing chambers, and it is agreed by all, that the residue level of the gas chambers is lower than the delousing chambers. But, that one, single, solitary piece of evidence, is not, on its own, capable of proving there were no gas chambers. It is scientifically and evidentially wrong, to try and use one piece of evidence, as proof.
Reported for obfuscation, lying, strawmanning and wandering off topic. This thread is about Germar Rudolf's book "The Chemistry of Auschwitz". Germar Rudolf in his Conclusion section, contains a conclusion for Chemistry, and a conclusion for Non-Chemistry such as the infrastructure, documentation, blueprints, and, delivery mechanisms, so stop lying he bases his conclusions on one thing.

Since you seemingly didn't know this, we can only conclude that you are not familiar with the book or know what is in it, just like Confused Jew.
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Re: Flaws and Limitations in Chemistry of Auschwitz

Post by Stubble »

Hans Hill, can you refresh my memory?

Were there any 'Kula Columns' at the following sites;

Kremas I, IV and V

'Bunker' 1, 2

If not, isn't debate around them, rather mute?

This thought seems to occur to me from time to time, but, I may be in error.
If I were to guess why no t4 personnel were chosen to perform gassing that had experience with gassing, it would be because THERE WERE NONE.
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Re: Flaws and Limitations in Chemistry of Auschwitz

Post by HansHill »

Stubble wrote: Mon Nov 03, 2025 1:57 pm Hans Hill, can you refresh my memory?

Were there any 'Kula Columns' at the following sites;

Kremas I, IV and V

'Bunker' 1, 2

If not, isn't debate around them, rather mute?

This thought seems to occur to me from time to time, but, I may be in error.
There were no claimed Kula Comums for any of those gas chambers, no. Meaning Krema's II and III are completely unique in this regard. For Krema I, they were merely dropped from above onto their heads. In Krema's IV and V the story is a side-loading slot at ground level. And the bunkers is a bit of a mess, but here's what is claimed:

Image

As per Pressace, via Mattogno, HH Vol 11.

So yes, completely moot.
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Re: Flaws and Limitations in Chemistry of Auschwitz

Post by Stubble »

How about forced air extraction?

That apply to any other alleged execution site that used Zyklon-B as the instrument? Or is that novel as well?
If I were to guess why no t4 personnel were chosen to perform gassing that had experience with gassing, it would be because THERE WERE NONE.
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Re: Flaws and Limitations in Chemistry of Auschwitz

Post by HansHill »

Stubble wrote: Mon Nov 03, 2025 2:08 pm How about forced air extraction?

That apply to any other alleged execution site that used Zyklon-B as the instrument? Or is that novel as well?
Pressac claims a ventilator was ordered at Bunker 2, see below along with Rudolf's commentary:
The article, as Pressac himself informs us, had been requested by the Boos
Company:
“in order to use it as a guide for equipping the future prisoner reception
building of the main camp with a battery of nineteen similar delousing gas
cells.” (p. 42)

Therefore the article concerned the nineteen Zyklon B disinfestation cham-
bers with the circulation system planned for the new reception building.
The date of the request is July 1, 1942 (p. 103, note 135), that is, one
month after the presumed beginning of the alleged activity of Bunker 2.
This article included the previously mentioned schematic plan for a DE-
GESCH circulation gas chamber, as published by Pressac as Document
16f. That this article was shown by Bischoff to Höss for the purpose of
furnishing Bunker 2 with a ventilation system is not attested to by any doc-
ument. Quite to the contrary: it is the pure fantasy of Jean-Claude Pressac,
who states, moreover, that no mechanical ventilation system was installed
in Bunker 2 at all.

HH Vol 14
Regarding Krema V, a ventilation system was ordered in 1944 and installed some point around spring 1944, however we don't know where or in which room. This was not replicated in Krema IV, as this was already out of commission by this point. Source Rudolf Chemistry of Auschwitz setion 5.4.2.

**Edit - so... no basically.
Last edited by HansHill on Mon Nov 03, 2025 2:24 pm, edited 1 time in total.
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