Hyperbaric Oxygen Therapy (HBOT): General information and discussion of Home Units

[Thor]

I am ordering af 10 l/min oxygen concentrator from Zoy-Tech. I asked them about the oxygen flow inside the chamber. I currently have an oxygen concentrator, that delivers 5 l/min outside at room pressure (1 ATA). At 1.5 ATA inside the chamber the flow rate is reduced to 2.5-3 l/min. For the larger OC with 10 l/min outside, the flow rate at 1.5 ATA is 6.4 l/min. If the pressure is increased to 2 ATA, the oxygen flow rate inside the chamber will be reduced even further.

 

[RedFox]

I am ordering af 10 l/min oxygen concentrator from Zoy-Tech. I asked them about the oxygen flow inside the chamber. I currently have an oxygen concentrator, that delivers 5 l/min outside at room pressure (1 ATA). At 1.5 ATA inside the chamber the flow rate is reduced to 2.5-3 l/min. For the larger OC with 10 l/min outside, the flow rate at 1.5 ATA is 6.4 l/min. If the pressure is increased to 2 ATA, the oxygen flow rate inside the chamber will be reduced even further.

I'd be interested in knowing the cost. Perhaps a 15 l/m would be better if the aim is to reach 10 l/m inside the chamber?

On a note of caution, I did watch a video on the possible dangers of soft chambers at home. This seems like a good time to mention it.
With the extra oxygen supply, and the excess oxygen potentially venting into the room (not outside the building) precautions should be taken. Both in ventilation and making sure no flames/ignition sources are within the same room.
Second is CO2 buildup (and possible suffocation) within the chamber. With my Zoy-Tech chamber it has a CO2 return line - which upon inspection inside my pump until is simply a blocked off pipe not connected to anything. My understanding is it should be connected to a CO2 scrubber that feeds back into the pressurized line.

It may also be worth limiting time in the chamber to a maximum of 60-70 minutes, due to CO2 build up.
Signs of CO2 buildup within a chamber will be increased temperature/humidity and water vapor forming inside. I may get a CO2 meter to find out what it's doing preciously. As an offset I make sure the room I use the chamber in is well ventilated so the main pump is bringing in extra oxygen (as well as making sure excess expelled oxygen doesn't build up within the room itself).

As long as you have the oxygen line working (and are breathing from it) there should be no issue. The danger comes from systems that have no oxygen lines, or if more than one person enters the chamber at once - even a baby/toddler produces as much CO2 as an adult.

Some things that should go without saying - children etc should not be left unsupervised in a chamber (the video cites one case of an unsupervised child suffocating). The connectors have a small chance of disconnecting so the person in the chamber should be aware at all times of the flow of at least oxygen to them.

Video is here if anyone is interested:

 

[Vinícius]

I live in Sweden and I payed approx. USD500 in import duty for my soft 1.5ATA chamber ST702, and my price was USD6000. I got the price down after some serious but polite negotiation during a couple of weeks, and by comparing them with Zoy-Tech. A very nice guy by the name Louis btw. Note that the exchange rates has changed since July.

Good luck Z!

you're lucky, i'd have to pay close to 100%

 

[naorma]

Yesterday I had my 4th session. I was at another place I found, it is 360 € for 5 sessions 1.3 chamber.
My focus this time was to get more oxygen in my brain and I was concentrating on my brain and imagined how this got into my brain and had the feeling that about 2-3 cm of my brain were touched. I do not longer think of the dust I breathe - but still continue to dust and wipe my apartment - but focus more on my brain.
And I think I could do nothing better with that 500 € climate bonus but to take care for the climate in my brain .

 

[Vinícius]

Zoy-Tech chamber it has a CO2 return line - which upon inspection inside my pump until is simply a blocked off pipe not connected to anything. My understanding is it should be connected to a CO2 scrubber that feeds back into the pressurized line.

i can't really picture what you're saying but might be just a matter of connecting the exhaust valve on your mask to a hose vented to outside or something like that?

 

[Z...]

I suggest you to consider Zoy Tech chamber. It's cheaper, made of white material, so you can read inside without extra light source, and they can sell it with 10 lpm concentrator for around $500 extra. Their latest design has inflation time around 7 minutes.

Does the pressure go to 1.5?
So you have to specify that you need 10 litre per min O2 concentrator?
Perhaps you have a model number or a link.
Do Zoy Tech offer any discounts for forum members?
Thanks for your patience.

 

[aimarok]

With my Zoy-Tech chamber it has a CO2 return line - which upon inspection inside my pump until is simply a blocked off pipe not connected to anything. My understanding is it should be connected to a CO2 scrubber that feeds back into the pressurized line.

This CO2 return line could be excluded from design altogether because it feeds the same air which goes out of the chamber through pressure relief valves. Since the system has open gas circuit the risk of CO2 build-up is the same as in your room during normal breathing. To make sure oxygen concentrator gets enough fresh air just keep adequate ventilation in the room.

 

[aimarok]

Does the pressure go to 1.5?
So you have to specify that you need 10 litre per min O2 concentrator?
Perhaps you have a model number or a link.
Do Zoy Tech offer any discounts for forum members?
Thanks for your patience.

Here is the link to 1.5 model ZOY® 1.5ATA Soft Type Hyperbaric Chamber -. You should ask for 10 lpm concentrator specifically because default one is 5 lpm. I'm not aware about discounts but you can ask for one mentioning the forum and benefit of your future positive feedback for their sales.

 

[Z...]

Here is the link to 1.5 model ZOY® 1.5ATA Soft Type Hyperbaric Chamber -. You should ask for 10 lpm concentrator specifically because default one is 5 lpm. I'm not aware about discounts but you can ask for one mentioning the forum and benefit of your future positive feedback for their sales.

Thanks . It mentions 25% oxygen concentration which is inadequate - not sure if this goes to 50% if it is 10L per minute instead of 5.

 

[aimarok]

Thanks . It mentions 25% oxygen concentration which is inadequate - not sure if this goes to 50% if it is 10L per minute instead of 5.

Don't forget you are reading Chinese website . 23-25% is an oxygen concentration in chamber atmosphere. Oxygen concentrator feeds out at least 90% oxygen gas mixture which goes to a mask. You will need to buy a mask (it's cheap) yourself because they ship their chamber with something similar to an audio headset where oxygen-rich gas goes through a "microphone".

 

[AndrewMn]

I've had seven sessions already (1.7 atm at 96% -100% oxygen concentration). To be honest, I can't say that I've noticed any changes. I'm even starting to worry that I'm not at all susceptible to this procedure ). I hope that with the number of sessions something will change. So far the doctor has let me do 15 sessions in total. That is the absolute maximum allowed by the standard hospital protocols. I will try to take a week break and ask for an extension. It's not much of a chance, though. I'll just have to make an appointment at another hospital, which is further away from home.

By the way, perhaps this information will help those who have experienced the same restrictions as I have. I actively insisted that I needed this amount for rejuvenation programs, to recover from the covid (I still have the medical certificate from last year). It helped to persuade the doctor and raise my blood pressure from 1.3 to 1.7 atm (I will ask for 2 but I don't think they will allow it). Another important point - our hospital does not use atmospheres and used to indicate the pressure for the procedure in mPa. For reference 1 mPa = 9.86923 atm. Therefore the sessions are carried out at 0.17 mPa which is equal to 1.677 atm. Although, of course, many of the specialists who conduct the sessions are aware of these peculiarities. But it is easier to talk to them when you immediately indicate convenient, for their perception, indicators that you need.

 

[Thor]

I'd be interested in knowing the cost. Perhaps a 15 l/m would be better if the aim is to reach 10 l/m inside the chamber?

They said that since I've bought a chamber with them, they can give me a reduced price of USD 1,850 plus shipping. I don't know what the normal price is. But for the 10 l/m they offered me a 20% discount on the normal price.

The thing is it's huge - 80.5 x 44.5 x 67.5 cm and it weighs 90 kilos - so the shipping is going to be expensive as well.

 

[Thor]

Don't forget you are reading Chinese website . 23-25% is an oxygen concentration in chamber atmosphere. Oxygen concentrator feeds out at least 90% oxygen gas mixture which goes to a mask. You will need to buy a mask (it's cheap) yourself because they ship their chamber with something similar to an audio headset where oxygen-rich gas goes through a "microphone".

You can ask them to supply a cannula mask with the system, which is two small tubes that go into the nostrils. If you have an oxygen concentrator of 5 l/m you will breath more or less the same amount of oxygen from the proper mask as you will from the cannula. If you get a non-rebreather mask and an oxygen concentrator of 10 l/min or even better, 15 l/m, then you can the full benefit of higher oxygen levels.

 

[RedFox]

They said that since I've bought a chamber with them, they can give me a reduced price of USD 1,850 plus shipping. I don't know what the normal price is. But for the 10 l/m they offered me a 20% discount on the normal price.

The thing is it's huge - 80.5 x 44.5 x 67.5 cm and it weighs 90 kilos - so the shipping is going to be expensive as well.

Someone else mentioned Longfian being the same type as the Zoy-Tech concentrator - they have a 20psi 10l/min concentrator here JAY-10 (20PSI)_High Pressure Oxygen Concentrator_High Pressure Oxygen Concentrator_PRODUCTS_Longfian Scitech Co.,Ltd.
Not sure the price, but it's listed here as $610 (excluding shipping) [Hot Item] 20psi 10L Oxygen Concentrator

There is a 15 and 20 l/min version here fwiw JAY-15-4.0 JAY-20-4.0_Hospital Oxygen Supply_Medical Oxygen Concentrator_PRODUCTS_Longfian Scitech Co.,Ltd.

 

[dredger]

There is a 15 and 20 l/min version here fwiw JAY-15-4.0 JAY-20-4.0_Hospital Oxygen Supply_Medical Oxygen Concentrator_PRODUCTS_Longfian Scitech Co.,Ltd.

Just checked the page : 118Kg ! It's not light, but i assume it's the price (or better say weight) to pay to benefit of high quality devices. With such devices this enters the professional sector - I wonder what is its cost ?

So far, I understood that with 10L/m + a non-rebreather mask you have then a very good combination, do am i right ?
If yes, what would be the benefit to have a 15 or 20L/m device ? To add a bit more % of oxygen breated ? Or to have to possibility to avoid the use of a non-rebreather mask ? (or both, or other reasons ?)

It was also discussed early in the thread the danger about too high % of oxygen that could burn the lungs, and something in regard that it's only a danger for 2.0 ATA or more ATM pressure ... but i admit i did not much understood what is the point here. If someone well understood this specific sub-topic please do not hesitate to explain it here :)