How To Build Your Own EWOT System (Exercise With Oxygen Therapy)


How To Build Your Own Exercise with Oxygen Therapy System.

That is a  picture of me exercising on my home made EWOT system.  I made this Exercise With Oxygen Therapy System following these directions that I have listed below, This is a daily routine that I do to Beat Cancer and just feel better with much more energetic. I use a stair climber for quick and maximum exertion. You can use a stationary bike or a elliptical machine.


“You can buy a refurbished oxygen concentrator online for as little as 300 dollars, but I suggest looking up an oxygen concentrator repair shop in your area and inquire about buying a new or refurbished oxygen concentrator. You’ll notice that many places require a doctor’s prescription for new oxygen concentrators, but not refurbished ones. This is because refurbished machines are considered as replacement parts and do not require a prescription. In any case, get one that puts out at least 5 liters per minute.”

So, let’s say you’ve got your oxygen concentrator. Often the oxygen port will be on the top of the machine. A hypoxic port is inside in the machine. Here’s what the average oxygen concentrator looks like:
Oxygen Concentrator

Figure 1. A typical oxygen concentrator. There is a dial for adjusting the flow of oxygen and the port is located on the upper right of the machine.

Most oxygen concentrator deliver about 5 liters per minute, and some as high as 10 liters per minute. To obtain high oxygen levels, a sealed mask system connected to a reservoir is essential. Regular mask systems allow too much of something called “air entrainment.” The volume of the reservoir is important and needs to be at least 100 liters.

Simple math tells you that you will run out of oxygen pretty quickly without a large reservoir. Breathing normally, you inspire about a half a liter per breath, and this increases significantly during exercise. This is the reason for those super big bags from companies like the LiveO2 system. I have found that at least 100 to 200-liter reservoir is needed for most 30-60 minute exercise with oxygen therapy (EWOT) sessions.


OK, now, here are the instructions for biohacking your oxygen concentrator:

Step 1: Obtain an oxygen concentrator. Scroll up and read again, search the internet, If possible, consider buying a 10-liter machine, but a 5-liter machine does the job just fine.

Step 2: Make the reservoir.

Materials required to make the reservoir bag:
-a roll of thick 4 mm (or more) plastic
– a ¾ inch PVC reducer bushing
-½ inch PVC coupler
½ inch PVC cap
– a CPAP adapter


Below are photos of the PVC coupler, the bushing and the CPAP adapter. Just comment below this article if you’re confused about any of the materials you’ll need, and I’d be happy to reply.
coupler and bushingFigure 2. On the left, the ½ inch PVC coupler, on the right, a ¾ inch PVC reducer bushing.

CPAP adaptor

Figure 3. CPAP adaptor. This piece attaches to the ½ inch coupler on one side and CPAP tubing on the other. It also has a port to attach the oxygen tubing.

The plastic required for the reservoir bag needs to be at least 4 millimeters thick or more. Most fabric stores sell a thick plastic that come in a roll.

Lay the plastic on a flat surface, and then, using a heat gun or iron, heat the ends of the plastic together on each side, leaving the bottom unsealed. An iron is recommended, set on a low heat setting. Heat around the edges, sealing three sides of the bag only.

Flat Iron

Figure 4. Use an iron on low heat to melt the two edges of the thick plastic together. This step may need to be repeated several times.


At the bottom of the bag near the unsealed opening, cut an “X” about ½ inch in diameter. Place the ¾ inch reducer bushing inside the bag just under the opening that was cut into the plastic. Then place the ½ inch coupler on top of the “X” on the outside of the bag. Now push the two pieces together, forcing the plastic into larger ¾ inch coupler. This is what creates the seal. It should look like this:

reducer bushing

Figure 5. Place the ¾ inch reducer bushing under the plastic, and cut an “X” in order to insert the ½ inch coupler into the reducer bushing, creating a seal.


Figure 6. Firmly insert the ½ inch coupler into the reducer bushing. This seals the fitting into the plastic.

coupler and bushing2

Figure 7. The coupler and reducer bushing successfully inserted into the plastic.

Now attach the CPAP adapter to the ½ inch PVC reducer bushing and put the ½ inch PVC cap onto the end of the CPAP adapter port. Now the bottom of the reservoir bag can be finished by sealing the open end with the heat gun or iron.



Figure 8. Inflating the reservoir with oxygen. Notice the oxygen tubing at the top. The CPAP tubing is attached to the ½ inch coupler.

inflated reservoir

Figure 9. The reservoir fully inflated and holding about 200 liters of oxygen. Be careful to not overfill as the bag will come apart with too much pressure.

Step 3: Attach the oxygen tubing and fill the reservoir. Use oxygen tubing that will connect to the machine to the oxygen outlet on the CPAP adaptor. This is usually a thin, plastic tubing that should come with the oxygen concentrator. Also, cover the open end of the CPAP adaptor with the ½ inch PVC cap.

Step 4: After the reservoir is filled, connect the CPAP tubing to the CPAP adapter. You can buy CPAP tubing from most medical stores. Again, depending on your situation and how far your treadmill, exercise bike, etc. is from the actual oxygen concentrator, you will need at least 10 feet or more of CPAP tubing. At this point you may want to attach the reservoir to the wall (use double sided tape) or just leave it on the ground or perhaps under your bed. Be creative!

Step 5: Connect the CPAP tube to the mask. The mask is a dual one-way valve that is quite easy to get from a medical store. Be sure to connect the CPAP tubing to the intake port of the mask, you will exhale out of the out-take port.

dual valve oxygen mask

Figure 10. Dual valve oxygen mask.

Again, once everything is connected, simply turn the machine on and let it run. Be sure the reservoir is capped off. The oxygen concentrator has to fill the reservoir bag, so if you are filling at, say five liters per minute, this will take about sixty minutes for a 200-liter bag.


OK, so now you’re probably wondering how to use this contraption. Here goes…

The mask should fit comfortably on your face. Adjust the straps until you have a good fit. If there is any pain or there are any leaks, then the mask is not fitted correctly. A good seal is very important and you should be able to breathe comfortably. If you have a 200-liter reservoir, breathing normally at sixteen times a minute will give you about thirty minutes of oxygen.

Using the mask oxygen system during exercise will deplete the reservoir much sooner, but it is still enough to do a good session.

One interval session that I use often on my bicycle trainer goes as follows:

-Be sure to fill the oxygen reservoir adequately before you start

-Warm up without oxygen until you reach your tar¬get pulse rate (usually 10-15 minutes)

-Put on the oxygen mask

-Sprint at 90 to 100% of your max¬i¬mum power or heart rate for 30 seconds

-Rest about 1 to 1.5 minutes

-Repeat at least 8 to 10 times

-During the session, use a fingertip pulse oximeter to monitor your pulse rate and O2 saturation. You should see consistently high levels of oxygen saturation (96+). Ideally, you should feel that your recovery between intervals is quicker than you would experience without the oxygen, and your perceived exertion at any given intensity will be a less than normal. Note, that it generally does not improve your peak performance or power output.

I also like to use an oxygen concentrator for enhancing recovery by literally just sitting on the couch and wearing the mask after a really hard workout or a race. In fact, a recent article published in the Journal of Strength and Conditioning Research showed that supplemental oxygen quickened recovery and improved muscle contractility after exercise. It has also been shown to speed up muscle tissue metabolism and increases tissue blood circulation.

For more ideas on hyperoxia and exercise with oxygen therapy protocols, you can check out plenty of tips on the internet. One site I particularly like for this is LiveO2.com and Ewot.com

I highly recommend that you check out the Liveo2.com sight. I have since scrapped my home made bag and bought my own Oxygen bag from Liveo2..

rescource Mark Squibb



So that’s it! Voila, you now have a system that will deliver oxygen at a high rate to your body during exercise.

Do you plan on using any of these oxygen biohacks? Was any of this confusing for you or do you need clarification on the design of the oxygen concentrator or the exercise protocol? Leave your comments, thoughts and feedback below, and I promise to reply.


4 thoughts on “How To Build Your Own EWOT System (Exercise With Oxygen Therapy)

  1. I’ve been looking into getting this for my lyme disease. Many are having success with it. Thank you so much fir posting this and may God bless you on your journey!

  2. You should at least be polite and cite my name as inventor of high volume EWOT. My name is Mark Squibb. I invented this and shared it because it helped my son resolve Tourette’s syndrome.

    Mandfred von Ardenne was the original inventor of EWOT. Please don’t pretend you created technology that you copied.

Leave a Reply

Your email address will not be published. Required fields are marked *