Method 3M mask as exit bag

[Jadeith]

Synopsis:
After some research i chose N2 method as most painless, efficient (if done properly), easiest to access without raising suspicions and creating minimal mess for others (bystanders and such).
BUT - i can't stand having anything on my head (some claustrophobia maybe?). Besides, I'd like to take one last look on the nature's beauty when i go so i don't want anything obscuring my vision. Since SarcoPod is out of my reach, I had to resort to something else.

History lesson (not crucial, you can skip it):
During pandemic there was chronic shortage of personal protection equipment, especially for "frontline" medics. So smart people came up with an idea to combine cheap DAR antimicrobial filters with easily accessible face masks such as 3M 6200 series. As a result, print4medic initiative was started, connecting medics with 3d printer owners. Since I got 3D printer myself. I've made several of those adapters, both for local medics and to protect my family as well.

The design:
So, here's what i came up with.



What you see is 3M mask (Chinese clone actually) with blind plug on the right and one of aforementioned DAR adapters on the left since i need only one connection active. Adapter connects to DAR filter (without injection port) and then there's piece of CPAP tubing.
Now, why the filter? Simply put - because i'm lazy. I already have some adapter leftovers from print4medic initiative and external diameter of the filter fits very tightly into CPAP tubing.
Of course, i could print something like this (project taken from https://www.thingiverse.com/thing:4250755):


But, as i said, i'm lazy and used what i already have.
Cap design was taken from here: https://www.thingiverse.com/thing:4259018

Adapter design was taken from here: https://www.thingiverse.com/thing:4258337
Adapter from cap design is also viable.

I found DAR filters and CPAP tubing on local equivalent of ebay.
Only element lacking on this picture is N2 tank with pressure regulator and some kind of connection between the regulator and CPAP tube. Most probably i'll resort to 3D printing again and make some kind of reduction that will match regulator exhaust diameter on one side and CPAP tube diameter on the other. I'm going to get 10l 200bar tank since these are readily available on line in my area for AC testing and home brewing.

Preliminary tests show that solution is airtight. Pinching the tube and inhaling cause mask to "jump" onto the face. 3M mask exhaust valve should prevent barotrauma (overpressure) should i get overzealous with N2 flow.

I also got standard body bag to reduce involuntary limb movement and possible "spillage" should my body decide to empty itself in the process. The idea is to seat belt myself in the car while in body bag, with tank behind my back strapped to back rest. Also, must remember to leave car windows slightly open to prevent N2 buildup in the car and creating dangerous environment for those who will come to clean the mess up.

So, what y'all think? Will it work as i envisioned?

 

[Overwhelmed52]

It looks good. Unfortunately, I don't have enough experience to know if it would work or not. I get not wanting to put something over your head.
I tried ordering small N2 canisters with regulators from another country but they wouldn't ship them to me. Getting it locally might be tricky and would probably involve a large tank and I worry about having to figure out the regulator. I definitely like the idea of a peaceful way to go while looking at nature :)

 

[parasite_eve]

Def relate to wanting to go mask route - I'm not expert enough to weigh in in detail but will share I was pretty set on SCBA (with positive pressure vs SCUBA) and recently reminded PPH and exit international still warn against masks because of risk of non-airtight seal prolonging or botching process... I was thinking EEBD hood instead maybe but impressed by your ingenuity

 

[Jadeith]

Yes. It is imperative that mask one is going to use fits nicely to the face. 3M 6200 series come in 3 different sizes to choose from. Also, such DAR adapters are available for other mask manufacturers. Airtightness can be easily verified. Just cover the ports of the mask and inhale. If it's airtight, it will "suck" onto your face and you wont be able to fill your lungs completely since inside volume of the mask is very small. That's another reason i'd go for a face mask - no need to use extra gas to fill large bag and it's easier to flush out of any oxygen leftovers, residual or from exhale. And given that i'll have approx 2000L of N2 at my disposal, even if present, small leaks shouldn't pose much problem. Same goes with slight oversetting of the regulator.

 

[parasite_eve]

Yes. It is imperative that mask one is going to use fits nicely to the face. 3M 6200 series come in 3 different sizes to choose from. Also, such DAR adapters are available for other mask manufacturers. Airtightness can be easily verified. Just cover the ports of the mask and inhale. If it's airtight, it will "suck" onto your face and you wont be able to fill your lungs completely since inside volume of the mask is very small. That's another reason i'd go for a face mask - no need to use extra gas to fill large bag and it's easier to flush out of any oxygen leftovers, residual or from exhale. And given that i'll have approx 2000L of N2 at my disposal, even if present, small leaks shouldn't pose much problem. Same goes with slight oversetting of the regulator.

What about folks warning of face relaxing in unconsciousness and risks from that improper seal? Not trying to challenge, more trying to understand because initially thought SCBA for me because of reasons you said. <3

 

[Jadeith]

Not trying to challenge

And you should. That's why i posted this design here. To iron out any potential flaws. As for the face relaxing - valid point since I'm not sure if my face significantly changes during deep relaxation. I think that mask straps, since there's 4 of them connected to the piece of plastic placed at the back of the head, will be sufficient to hold it in place. Not that i'm going to grimace while putting the mask on and adjusting the straps, right? And those SCBA masks you suggest look even more promising in this regard since they have bigger, stronger straps, more of them and are specifically designed to stay on user in case of fall.

 

[parasite_eve]

And you should. That's why i posted this design here. To iron out any potential flaws. As for the face relaxing - valid point since I'm not sure if my face significantly changes during deep relaxation. I think that mask straps, since there's 4 of them connected to the piece of plastic placed at the back of the head, will be sufficient to hold it in place. Not that i'm going to grimace while putting the mask on and adjusting the straps, right? And those SCBA masks you suggest look even more promising in this regard since they have bigger, stronger straps, more of them and are specifically designed to stay on user in case of fall.

Forgot to say earlier - thank you for doing the mask printing thing (as someone immunocompromised, still having to mind the year-round COVID waves and fight for indoor clean air).

I imagine you've gone thru the threads that helped me consider this as an alternative to the eb, but sharing in case:

GasMonkey Setup [Nitrogen SCBA]

🐵 GasMonkey Setup 🐵 [Nitrogen SCBA] Positive Pressure Self-Contained Breathing Apparatus **images have been edited to ensure anonymity** Front view Side view Back view Pressure gauge Lung Demand Valve and Mask Bluetooth pulse oximeter Cylinder attachment Cylinder's connection...

sanctioned-suicide.net

SCUBA inert gas megathread

SCUBA inert gas megathread This thread was made only for the SCUBA method. For other inert gas methods please use the other threads. ************ Since my post regarding the SCUBA method in another thread, there have been many questions regarding this method in several threads and by PM...

sanctioned-suicide.net

For me the concern remains what happens if your face relaxes too much or improper seal - assuming proper and tight seal when donned, I'm unclear what the risk of failure really is if PP is supposed to protect, e.g. firefighters, in a totally sealed breathing environment while exerting or in case of fall like you said.

 

[devils~advocate]

This setup is a 'constant flow'...which is fine...it like an exit bag, except the breathable volume is smaller.
There is some concern about the volume.....GasMonkey or another experienced poster mentioned something of this on a similarly proposed system.

 

[Jadeith]

Given that regulator provides constant supply of N2 flushing the mask chamber, slight misalignment shouldn't pose much problem. But honestly i can't see it happening due to simple face muscle relaxation. Rubber bands should press the mask against the face, regardless of the level of the muscle relaxation. Might be possible if you don't secure rest of your body, you fall over and mask would get knocked off from your face. That's why i intend to use seat belts in relaxed (lean back) position.

 

[parasite_eve]

Ahhh so in this setup it's more constant flow vs on demand? Maybe that's what makes PPH advocate so much against still because of the on demand closed systems have more risk of botching? (My understanding of SCBA vs eb or eebd hood is that ebb and eebd are "open" environs):

Execution using Nitrogen Hypoxia is Doomed to Fail - The Peaceful Pill Handbook

Execution using Nitrogen Hypoxia is Doomed to Fail as it fails to learn from any of the mistakes of the right to die movement.

www.peacefulpillhandbook.com

Alabama to execute inmate with nitrogen gas, a never before used method - Exit International

Share this ContentAlabama set to execute inmate with nitrogen gas, a never before used method By KIM CHANDLER Updated 6:30 AM GMT+1, January 25, 2024 MONTGOMERY, Ala. (AP) — Alabama will attempt to put an inmate to death with nitrogen gas on Thursday night, a never before used execution method...

www.exitinternational.net

 

[Jadeith]

Ahhh so in this setup it's more constant flow vs on demand?

Exactly. In "on demand" systems it is your "inhaling" that causes gas to enter the mask. In my solution gas is constantly supplied to the mask, same way as in classic exit bag. Difference is in volume and placement. Mask has much smaller volume, hence it's easier to purge oxygen from it and mask cover only "air intake", removing potential discomfort of having one's head wrapped in plastic entrapment. Pressure will not push the mask away from the face because exhaust valve in the mask will open before that happens, letting excess of the N2 out.

 

[parasite_eve]

Exactly. In "on demand" systems it is your "inhaling" that causes gas to enter the mask. In my solution gas is constantly supplied to the mask, same way as in classic exit bag. Difference is in volume and placement. Mask has much smaller volume, hence it's easier to purge oxygen from it and mask cover only "air intake", removing potential discomfort of having one's head wrapped in plastic entrapment. Pressure will not push the mask away from the face because exhaust valve in the mask will open before that happens, letting excess of the N2 out.

Interesting okay I misunderstood originally as on-demand like SCBA; then maybe the risks here be similar as with CPAP or Rebreathers? Recalling Exit and others here warning about those two devices but need to find the posts because not sure if applicable (believe with one it was the seal issue).

Now I'm back to thinking it'd be eebd or eb for me unless there's something out there like this setup you've engineered that doesn't take 3d printing?

 

[Jadeith]

then maybe the risks here be similar as with CPAP or Rebreathers?

Keep in mind that CPAP masks were designed with different goals that protection masks. CPAP are mostly universal size and the should deliver as much "breathing mixture" as possible. "Spillage" or some outside air getting in is not that much of a problem. Protection gear on the other hand has to successfully prevent ANYTHING from getting inside the mask. Bacteria and viruses included as was demonstrated during COVID period. Aforementioned 3M 6200 series comes in 3 different sizes for best fit so of course - some risk probably exists but i think it can be mitigated by carefully choosing best fitting mask.

unless there's something out there like this setup you've engineered that doesn't take 3d printing?

Well, i'm not aware of such design but then again 3D printing isn't rocket science anymore. There's wide range of companies that can print sth for you, some schools have them in their workshops and also you can get in touch with someone with 3D printer via forums.

 

[parasite_eve]

Just remembered this documentary (in thread) where it looks like a SCBA from a Dr. Boudewijn Chabot?

Nitrogen film - information about the nitrogen method

Nitrogen film A film has been released providing information about the nitrogen method. The film is in Dutch. For those interested, a paid version with English subtitles is also available for download on Boudewijn Chabot's website, a Dutch psychiatrist and researcher of peaceful suicide...

sanctioned-suicide.net

Seems like you've done the homework and have the professional background to have thought through this innovation; my personal concern over it all is just trusting 3d printed parts but Luigi showed how effective they can be under critical conditions.

Is there a way to safely test it with, e.g. like peeps recommended hooking up compressed breathable air to test SCBA & SCUBA setups?

 

[Jadeith]

Is there a way to safely test it with,

I'm sure that with willing head, testing method will be found. Most basic one was already mentioned and performed. I've put it all together, sealed free end of CPAP tubing, slapped that onto my ugly visage and tried to inhale. Nope. No external air was able to get in. Might sound kinda ironic but for me, all the surviving medics that used those adapters are enough proof that this thing has potential to kill me.

BTW - thanks for all the links you provided. Good read.