ReBreather - Home Brew

[TrailerTrash]

Will be testing two brands of 4/8 Soda Lime for anesthesia/diving I bought from major online site "A" and eBay - black cap is temp only for testing and will be replaced with white PVC solid cap after final Soda Lime fill. Tubing is basic anesthesia circuit from eBay that had all fittings I needed, body is PVC pipe, anesthesia bacteria/viral filters came with circuit (keeps Soda Lime dust from entering lungs - just in case a person decides to change their mind during use), and basic household HVAC foam/mesh filter cut to dimension of PVC pipe (inside canister but not visible) to ensure no Soda Lime granules exit canister. I'll be testing later this week and have built several versions using various sizes of pipe, pre-made filter canisters for aquariums, one with an internal fan to circulate air, and other containers/materials. I tested previous versions and O2 dropped pretty damn quickly. CO2 absorber literature says length/width ratio of scrubber canister should be about 1.5, which appears to be the ratio of Soda Lime fill in the two canisters of the currently-marketed ReBreather system some have bought. You don't need two or three breathing hoses, but I have to say the extra hose capacity helps and this thing flows air right through everything and into the bag with VERY little resistance. Mask I'm using will be good quality CPAP mask, just because I have several; however, anesthesia mask with straps would likely work too if fitted correctly. There are SO many easy ways to make a ReBreather it's silly. If you're not handy or just don't have access to parts/tools/eBay/"A" then just buying the currently-marketed version may work out ok for you. Excluding monies I spent to build various prototypes, I can build a fully functioning unit with mask and Soda Lime for about $40-$50 US. Have a nice day all ...... sorry for the huge picture size ...... I wasn't able to scale it down. Ok, I didn't put much effort into trying as far as resizing the picture, but ..... you know ..... time is money .... or time .... or pain ..... I don't know .... fill in the blank for yourself. Test results to come soon ......

 

[GoodPersonEffed]

Ok, I didn't put much effort into trying to be honest but ..... you know ..... time is money .... or time .... or pain ..... I don't know .... fill in the blank for yourself.

Huh?

I don't get it. Was some of the post a lie? And it's more difficult to be honest?

 

[TrailerTrash]

No, I was saying I didn't put much effort into trying to resize the picture. Everything in the post is accurate and honest .... It was humor ........

 

[enjolras]

The white canister we see replaces the R2D's reservoir ? The soda lime granules are placed inside the socket ? If so, this low-tech effort looks damn more portable and flexible. It should get a lot less along the way in case of movements.

 

[TrailerTrash]

The white part we see replaces the R2D's reservoir ? The soda lime granules are placed inside the socket ? If so, this low-tech effort looks damn more portable and flexible. It should get a lot less along the way in case of movements.

Yes, Soda Lime granules go inside the white part sandwiched between layers of course filter material at teach end. You load them with light shaking to settle and do not compress heavily .... just enough to hold in place. Soda Lime cannot be stored under pressure (e.g. thrown in a bag and stacked under a bunch of heavy things in your closet) or stored in heat because that dries it out. Always want to wear gloves/mask to load the somewhat caustic granules and they should break apart with moderate squeezing pressure in you hand .... if they're hard as rock and will not break apart under hand pressure they're dried out and questionable. I'm going to compare the performance of a two-cylinder version like R2D with each breathing tube connected to one cylinder and the backs of the cylinders tied together with a t-pipe to the inflatable reservoir bag. I'm currently looking at a couple of stores for clear tubing that may be less expensive than pvc. Honestly, you could build a rebreather using so many types of plastic containers available in stores. Many, many tubing and mask options too. It's pretty much up to the imagination. Minimum time that the air your breathing needs to flow through/around the Soda Lime and absorb CO2 is at least 1 second and 2-3 is better. So you don't want the total volume of air inside the device to be too large, just enough for typical breathing tidal volume to maximize passage of each breath through the granules to expose the air quickly and efficiently. Oddly shaped containers are not generally recommended because they can increase channelling and/or wall effect where the air doesn't go through the Soda Lime well but instead flows along the walls of the container and through easier paths created by disturbed distribution of the granules due to the uneven or weirdly shaped container geometry. You want the granules to be consistently and uniformly packed.

 

[enjolras]

Thank you ! There's a scientist in you. This is much more evident.
If somebody could release plans, eventually a video, this could become the future of euthanasia in a post-apocalyptic world ! The core substance is even more innocuous than SN, then it's recycling materials. Have fun with the design twists

 

[pthnrdnojvsc]

View attachment 34088


Will be testing two brands of 4/8 Soda Lime for anesthesia/diving I bought from major online site "A" and eBay - black cap is temp only for testing and will be replaced with white PVC solid cap after final Soda Lime fill. Tubing is basic anesthesia circuit from eBay that had all fittings I needed, body is PVC pipe, anesthesia bacteria/viral filters came with circuit (keeps Soda Lime dust from entering lungs - just in case a person decides to change their mind during use), and basic household HVAC foam/mesh filter cut to dimension of PVC pipe (inside canister but not visible) to ensure no Soda Lime granules exit canister. I'll be testing later this week and have built several versions using various sizes of pipe, pre-made filter canisters for aquariums, one with an internal fan to circulate air, and other containers/materials. I tested previous versions and O2 dropped pretty damn quickly. CO2 absorber literature says length/width ratio of scrubber canister should be about 1.5, which appears to be the ratio of Soda Lime fill in the two canisters of the currently-marketed ReBreather system some have bought. You don't need two or three breathing hoses, but I have to say the extra hose capacity helps and this thing flows air right through everything and into the bag with VERY little resistance. Mask I'm using will be good quality CPAP mask, just because I have several; however, anesthesia mask with straps would likely work too if fitted correctly. There are SO many easy ways to make a ReBreather it's silly. If you're not handy or just don't have access to parts/tools/eBay/"A" then just buying the currently-marketed version may work out ok for you. Excluding monies I spent to build various prototypes, I can build a fully functioning unit with mask and Soda Lime for about $40-$50 US. Have a nice day all ...... sorry for the huge picture size ...... I wasn't able to scale it down. Ok, I didn't put much effort into trying as far as resizing the picture, but ..... you know ..... time is money .... or time .... or pain ..... I don't know .... fill in the blank for yourself. Test results to come soon ......

Great invention! Could be on the level of Thomas Edison, Steve Jobs or Elon Musk.I'm not being sarcastic nor condescending with this seemingly over the top praise. I really am impressed by this. I have some ideas to make this into a 99.9% reliable ctb method. it's something no one has even thought of or mentioned but i know will work for me if done right: one of my ideas is to hook the soda lime to a full face scuba mask but there is much more to this plan.Is it ok to PM you later about it or to ask some questions about your rebreather?

 

[Notabadguy]

I don't understand this, if the potential problem with the Rebreather is a leaking in the fitting of the mask, what is the purpose of so much tech work? if someone don't feel confident with the mask provided by the seller, why don't just change the mask?

 

[Walilamdzi]

I can't say I understand how you've built this, but I am envious that you have. Well done!

 

[morningdew]

good work so far. Looks to be going in the right direction

 

[My_name_is_Luka]

if the potential problem with the Rebreather is a leaking in the fitting of the mask

I would consider a full-face scuba mask

 

[TrailerTrash]

I don't understand this, if the potential problem with the Rebreather is a leaking in the fitting of the mask, what is the purpose of so much tech work? if someone don't feel confident with the mask provided by the seller, why don't just change the mask?

Agreed - one can just buy the ReBreather currently marketed and change the mask. I wanted to build my own and test various versions to see how easy/cheap one could be built then offer the suggestions for free to others so they could cheaply build their own if they wanted. I'm going to use mine for sure, which is another reason I want it to work well. In the end, the time I'm wasting is my own I guess. I'm sorry you may feel my time, post, and ongoing dialogue regarding ReBreathers is a waste.

Great invention! Could be on the level of Thomas Edison, Steve Jobs or Elon Musk.I'm not being sarcastic nor condescending with this seemingly over the top praise. I really am impressed by this. I have some ideas to make this into a 99.9% reliable ctb method. it's something no one has even thought of or mentioned but i know will work for me if done right: one of my ideas is to hook the soda lime to a full face scuba mask but there is much more to this plan.Is it ok to PM you later about it or to ask some questions about your rebreather?

Sure -

 

[Notabadguy]

TrailerTrash, of course your valuable info is not a waste, I bought the Rebrether (at last I have a tracking number), and because of that I'm very interested. I was just talking. Sadly, I'm using it too. I'm very glad to get access to a peaceful method. Best wishes pal.

 

[My_name_is_Luka]

I'm sorry you may feel my time, post, and ongoing dialogue regarding ReBreathers is a waste.

It's definitely not a waste! One should be totally comfortable with the method he chooses. And if there is uncertainty of failure, it could ruin the whole experience.
The ReBreather in particular should be adaptable to the anatomy of the user, so a self-adapted version is much better.
It's like choosing goggles for swimming; some might fit better for large faces and noses with a high bridge, others for slim faces. They must be tried carefully, knowing which details must be checked.

 

[enjolras]

new discovery. I'm very impressed by the uncontrolled movement, which is even more ample than in this other vid




Consequently, I can't help but to wonder how long would this "spasm" continue, in case the persons were not manipulated, given oxygen

I believe your more compact custom design, if well attached/laced to the upper body, like fixed (loosely if there's a collision, so the connections don't break ?) in the middle of the chest, could interfere less than the large box of the official R2D which takes so much space.
additional idea : why not tie the tubes together with a plastic clipper ? so again, they don't get entangled anywhere, with arms (or objects, unlikely)

To be honest, I don't really know which configuration makes better sense. But this is the concern most bothering me in the end. Do I overreact for nothing ?

 

[morningdew]

new discovery. I'm very impressed by the uncontrolled movement, which is even more ample than in this other vid




Consequently, I can't help but to wonder how long would this "spasm" continue, in case the persons were not manipulated, given oxygen

I believe your more compact custom design, if well attached/laced to the upper body, like fixed (loosely if there's a collision, so the connections don't break ?) in the middle of the chest, could interfere less than the large box of the official R2D which takes so much space.
additional idea : why not tie the tubes together with a plastic clipper ? so again, they don't get entangled anywhere, with arms (or objects, unlikely)

To be honest, I don't really know which configuration makes better sense. But this is the concern most bothering me in the end. Do I overreact for nothing ?

This is exactly why the rebreather that has been marketed to us all will not work. One you start trashing around, the seal on the face mask will break. They guy making his own could potentially solve this issue.

 

[angie]

Agreed - one can just buy the ReBreather currently marketed and change the mask. I wanted to build my own and test various versions to see how easy/cheap one could be built then offer the suggestions for free to others so they could cheaply build their own if they wanted. I'm going to use mine for sure, which is another reason I want it to work well. In the end, the time I'm wasting is my own I guess. I'm sorry you may feel my time, post, and ongoing dialogue regarding ReBreathers is a waste.

Sure -

Has anyone any knowledge about the rebreather being unsuitable for people with lung problems ? im sure i read something but not sure where and dont see why it wouldnt be as effective for these people with copd empysema etc

 

[enjolras]

This is exactly why the rebreather that has been marketed to us all will not work. One you start trashing around, the seal on the face mask will break. They guy making his own could potentially solve this issue.

I absolutely don't know. Maybe it will resist for most everyone.
The marketed R2D has an attachement system to the torso in the front with 2 thin "back straps". I wonder if @TrailerTrash will come up with something in that area, after all the main design is sorted out definitely. If laying flat on the back with the cylinder canister placed on the chest, will OP address that it doesn't roll on the sides, pulling on the pipes ?

 

[My_name_is_Luka]

If laying flat on the back with the cylinder canister placed on the chest, will OP address that it doesn't roll on the sides, pulling on the pipes ?

you can wear a backpack on your chest and attack the cylinder to that, for example. It's nothing complex to solve.
What I see as a difficulty.. in case a full-face scuba mask is used, the tube of the mask is at the top of the head. That's not a very comfortable position to attack the tubes.

 

[angie]

I absolutely don't know. Maybe it will resist for most everyone.
The marketed R2D has an attachement system to the torso in the front with 2 thin "back straps". I wonder if @TrailerTrash will come up with something in that area, after all the main design is sorted out definitely. If laying flat on the back with the cylinder canister placed on the chest, will OP address that it doesn't roll on the sides, pulling on the pipes ?

I thought that the problem with it previously was the face mask moving due to facial muscle movement ! i thought this was resolved now since you put air into the mask to make a tight fitting seal on the mask ??that is the reason it's been re launched i thought it was an improved version ?

 

[Notabadguy]

I thought that the problem with it previously was the face mask moving due to facial muscle movement ! i thought this was resolved now since you put air into the mask to make a tight fitting seal on the mask ??that is the reason it's been re launched i thought it was an improved version ?

I think you're right. The fitting of the mask is the problem that they tried to fix, so they say.

 

[My_name_is_Luka]

it might not work well with everyone. I have facial hair, slim face and nose with a high bridge.

 

[I’mDone]

View attachment 34088


Will be testing two brands of 4/8 Soda Lime for anesthesia/diving I bought from major online site "A" and eBay - black cap is temp only for testing and will be replaced with white PVC solid cap after final Soda Lime fill. Tubing is basic anesthesia circuit from eBay that had all fittings I needed, body is PVC pipe, anesthesia bacteria/viral filters came with circuit (keeps Soda Lime dust from entering lungs - just in case a person decides to change their mind during use), and basic household HVAC foam/mesh filter cut to dimension of PVC pipe (inside canister but not visible) to ensure no Soda Lime granules exit canister. I'll be testing later this week and have built several versions using various sizes of pipe, pre-made filter canisters for aquariums, one with an internal fan to circulate air, and other containers/materials. I tested previous versions and O2 dropped pretty damn quickly. CO2 absorber literature says length/width ratio of scrubber canister should be about 1.5, which appears to be the ratio of Soda Lime fill in the two canisters of the currently-marketed ReBreather system some have bought. You don't need two or three breathing hoses, but I have to say the extra hose capacity helps and this thing flows air right through everything and into the bag with VERY little resistance. Mask I'm using will be good quality CPAP mask, just because I have several; however, anesthesia mask with straps would likely work too if fitted correctly. There are SO many easy ways to make a ReBreather it's silly. If you're not handy or just don't have access to parts/tools/eBay/"A" then just buying the currently-marketed version may work out ok for you. Excluding monies I spent to build various prototypes, I can build a fully functioning unit with mask and Soda Lime for about $40-$50 US. Have a nice day all ...... sorry for the huge picture size ...... I wasn't able to scale it down. Ok, I didn't put much effort into trying as far as resizing the picture, but ..... you know ..... time is money .... or time .... or pain ..... I don't know .... fill in the blank for yourself. Test results to come soon ......

I'm trying to figure out how airflow would work through your design. Would you mind if I PM you with a couple of questions please!

 

[TrailerTrash]

I'm trying to figure out how airflow would work through your design. Would you mind if I PM you with a couple of questions please!

Sure -

it might not work well with everyone. I have facial hair, slim face and nose with a high bridge.

Yes, masks are designed to be compromises in terms of fit for the largest group of people possible so if your face has dimensions beyond the average Joe it can be problematic ....

 

[TrailerTrash]

I absolutely don't know. Maybe it will resist for most everyone.
The marketed R2D has an attachement system to the torso in the front with 2 thin "back straps". I wonder if @TrailerTrash will come up with something in that area, after all the main design is sorted out definitely. If laying flat on the back with the cylinder canister placed on the chest, will OP address that it doesn't roll on the sides, pulling on the pipes ?

For mine, whether the single cylinder I just posted or the double cylinder I'm finishing, it can set easily beside the user in bed or on the couch .... straps are fine but really aren't a necessity. I tested the single cylinder today and O2 dropped very well indeed. Will be posting and testing the double cylinder next week. Other than making sure the mask stays put, this CTB method is very easy. Soooooooo easy

 

[angie]

For mine, whether the single cylinder I just posted or the double cylinder I'm finishing, it can set easily beside the user in bed or on the couch .... straps are fine but really aren't a necessity. I tested the single cylinder today and O2 dropped very well indeed. Will be posting and testing the double cylinder next week. Other than making sure the mask stays put, this CTB method is very easy. Soooooooo easy

Well if it works and your going into production i am stating now that im 1st in the que .

 

[knowman]

For mine, whether the single cylinder I just posted or the double cylinder I'm finishing, it can set easily beside the user in bed or on the couch .... straps are fine but really aren't a necessity. I tested the single cylinder today and O2 dropped very well indeed. Will be posting and testing the double cylinder next week. Other than making sure the mask stays put, this CTB method is very easy. Soooooooo easy

Hi TrailerTrash. I've PM'd you before regarding your unit. I'm so very much in need of a reliable alternative to my Exit Bag. I'm aware of the variations with the cpap masks, and there is a version that r2d2020 had that others were interested in. I also know of the scuba variations, and the assisted air version from another member. In this case, the member swears that it is fool proof. He said that his pictures were removed eventually.
The bottom line TrailerTrash is that I believe you are on to something with your unit. I am very near to being ready to cbt, and the Exit Bag (I still have the full set up), while certainly viable, poses too many possible problems for me.
I'm 71, and suffer in many ways physically and psychologically. There are so many that are suffering, even those much younger, as you know.
You offer the possibility of a peaceful and easy cbt without complications, and really are performing a great service in my opinion.
So, are you still planning on posting the parts list/vendors/directions soon? Also, which thread? Home brew? Debreather build? Too good to be true, or all of them? I look forward to ordering the parts, and to hopefully find a way to easily build my Rebreather soon. Thank you very much.

For mine, whether the single cylinder I just posted or the double cylinder I'm finishing, it can set easily beside the user in bed or on the couch .... straps are fine but really aren't a necessity. I tested the single cylinder today and O2 dropped very well indeed. Will be posting and testing the double cylinder next week. Other than making sure the mask stays put, this CTB method is very easy. Soooooooo easy

Hi TrailerTrash. I've PM'd you before regarding your unit. I'm so very much in need of a reliable alternative to my Exit Bag. I'm aware of the variations with the cpap masks, and there is a version that r2d2020 had that others were interested in. I also know of the scuba variations, and the assisted air version from another member. In this case, the member swears that it is fool proof. He said that his pictures were removed eventually.
The bottom line TrailerTrash is that I believe you are on to something with your unit. I am very near to being ready to cbt, and the Exit Bag (I still have the full set up), while certainly viable, poses too many possible problems for me.
I'm 71, and suffer in many ways physically and psychologically. There are so many that are suffering, even those much younger, as you know.
You offer the possibility of a peaceful and easy cbt without complications, and really are performing a great service in my opinion.
So, are you still planning on posting the parts list/vendors/directions soon? Also, which thread? Home brew? Debreather build? Too good to be true, or all of them? I look forward to ordering the parts, and hopefully find a way to easily build my Rebreather soon. Thank you very much.

 

[TrailerTrash]

Parts and instructions will be posted next week - easy parts buys at hardware store and on eBay, Amazon, or diver supply store for Soda Lime. I can assure you the easy-build kit works and anyone who can drill a couple of holes, glue, and use scissors (you'll see) can succeed. No really, it's that easy and very reliable. What mask you use, what comes with the anesthesia breathing circuit or another, is up to you. I took pictures today and had to deal with another thing or I would have posted already. I can promise you it's a much more polished/final design layout compared to the basic test version/setup I posted. Very safe and reliable.

 

[niloc]

Parts and instructions will be posted next week - easy parts buys at hardware store and on eBay, Amazon, or diver supply store for Soda Lime. I can assure you the easy-build kit works and anyone who can drill a couple of holes, glue, and use scissors (you'll see) can succeed. No really, it's that easy and very reliable. What mask you use, what comes with the anesthesia breathing circuit or another, is up to you. I took pictures today and had to deal with another thing or I would have posted already. I can promise you it's a much more polished/final design layout compared to the basic test version/setup I posted. Very safe and reliable.

Certainly interested in this and hearing more.

 

[lifeisbutadream]

Any update to this?

Parts and instructions will be posted next week - easy parts buys at hardware store and on eBay, Amazon, or diver supply store for Soda Lime. I can assure you the easy-build kit works and anyone who can drill a couple of holes, glue, and use scissors (you'll see) can succeed. No really, it's that easy and very reliable. What mask you use, what comes with the anesthesia breathing circuit or another, is up to you. I took pictures today and had to deal with another thing or I would have posted already. I can promise you it's a much more polished/final design layout compared to the basic test version/setup I posted. Very safe and reliable.

Any update to this?