OXYGEN TANKS

Updated 11th October 2018

In general there are three types of oxygen tanks: 

  • medical
  • industrial
  • pre-filled: those are only available at Promolife

The pre-filled option is by far the best solution, in my opinion. 

PRE-FILLED OXYGEN TANKS

Pre-filled oxygen tanks are, as far as I know, a unique and novel solution solely offered by Promolife. They now ship pre-filled oxygen bottles worldwide. Yep, you read that right. Which is totally bonkers. No matter in which country you are, you can order purest oxygen with just a few clicks. Select the number of bottles, add to shopping card, use my discount code for 7% off, check out, and wait for the delivery. Voila! Done. No more running to doctors to ask for prescription, no more talking to sales personnel at welding shops, you just buy everything online. It couldn’t be more convenient. 

The oxygen quality is at 99.9% purer than medical oxygen. 

You can chose between two different sizes and different number of bottles:

  • The smaller bottles hold 105 Liters of oxygen each and you can only order them in pairs. So the minimum order are two at combined US$ 195.00, or US$ 97.50 per bottle. If you return the bottles you will get a store credit of US$10 per bottle. The store credit is only for customers in the contiguous USA (meaning Alaska and Hawaii are excluded). You need a special regulator for the smaller bottles. 

 

  • The bigger XL bottles hold 600 Liters each and cost US$ 295.00. They have a standard industrial CGA 540 valve which calls for the CGA 540 industrial regulator. There is no store credit for returned XL bottles. 

O2Ready Prefilled Oxygen Tanks

Promolife’s O2Ready Prefilled Oxygen Tanks

Specifications:

Percentage of oxygen purity: 99.9%

Capacity: 105 L or 3.7 CF

Prescription needed? No

Good for all ozone applications including IV? Yes

What type of regulator needed? A special O2Ready regulator

How many Rectal Insufflations can be performed with 1 tank at 200 ml each? 525

Price: US$ 97.50 per tank or US$ 195.00 for 2 tanks (minimum order)

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O2Ready XL 600L Prefilled Oxygen Tank

Promolife’s O2Ready XL 600L Prefilled Oxygen Tank with CGA 540 valve

Specifications:

Percentage of oxygen purity: 99.9%

Capacity: 600 L or 21 CF

Prescription needed? No

Good for all ozone applications including IV? Yes

What type of regulator needed? CGA 540 pediatric regulator

How many Rectal Insufflations can be performed with 1 tank at 200 ml each? 3,000

Price: US$ 295.00

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MEDICAL VS INDUSTRIAL TANKS – PROS AND CONS

Apart from the pre-filled tanks you can also buy medical or industrial tanks. Both have pros and cons. Medical and industrial tanks have different valves. Medical valves have the number CGA 870, industrial tanks CGA 540. 

 

  MEDICAL INDUSTRIAL
Prescription needed?  Yes No
Chain of custody?  Yes It depends
Good for everything including injections? Yes Better use a filter
Oxygen purity 99% or higher 99% or higher
Valve CGA 870 CGA 540
Material mostly aluminum mostly steel
A medical oxygen tank with a CGA 870 post valve

A CGA 870 medical oxygen tank. 

cga 870 pediatric regulator promolife

A CGA 540 industrial oxygen tank. 

cga 870 regulator promolife for oxygen tank
cga 540 pediatric regulator

A CGA 870 pediatric regulator which fits CGA 870 medical oxygen tanks.

 

A CGA 540 pediatric regulator for a CGA 540 industrial tank.

 

Medical oxygen tanks are equipped with a CGA 870 valve. This is important to know for two reasons: it will tell you for sure whether you have a medical tank or not, and it determines which type of regulator you need. Only a CGA 870 regulator fits a medical tank. 

Medical oxygen tanks offer you peace of mind since you know that they have been filled with the purest oxygen and that they have been handled in a traceable manner. A CGA 870 tank could never be accidentally filled with some other gas, since the only filling hose which fits a medical valve is one which transports oxygen. So a medical oxygen tank assures the highest quality and purity of oxygen. It can be used for any type of insufflation or injection including the intravenous route. 

But: in order to obtain medical oxygen in the US, you will need a prescription from a doctor. If you do not have any respiratory conditions or other clear indications for supplemental oxygen, your doctor may not be willing to fill out the necessary paper work. 

The main material most medical bottles are made of is aluminum, so they are relatively light weight and easy to carry. Larger medical tanks can be also steel. 

Industrial oxygen tanks are equipped with a CGA 540 valve and hence call for a corresponding regulator. 

As the name already makes it clear industrial oxygen tanks are used for industrial purposes like welding. They do not have to satisfy the same hygienic standards as medical oxygen tanks. They also do not have a chain of custody. If you buy your oxygen at a welding company your tank may be swapped for one which had been used at a car repair shop and not handled with as much care and caution as one used at a doctor’s office. 

Both industrial and medical oxygen tanks are filled with the same type of oxygen of at least 99% purity. But for the above reasons, it is highly recommended to use at least one inline filter between the tank and the ozone generator. Best is to use a second one between ozone generator and syringe or whatever other accessory you’re using. 

Industrial oxygen can be freely purchased anywhere in the US at any gas delivery service. No special license or prescription needed. 

Industrial tanks are mostly made of steel and tend to be heavier than aluminum tanks. 

CGA 870 MEDICAL TANK AND REGULATOR

CGA 870 Medical D Oxygen Cylinder

A medical oxygen tank with a CGA 870 post valve

This is a 415 L medical oxygen tank with a CGA 870 post valve. It requires an oxygen wrench to open. 

Specifications:

Capacity: 415 L or 14.6 CF

Weight: 4.35 lbs

Material: Aluminum

Post or toggle? Toggle (no wrench needed) 

How many Rectal Insufflations can be performed with 1 tank at 200 ml each? 2,075

Prescription needed to fill it? Yes

CGA 870 Pediatric Regulator

A medical oxygen tank with a CGA 870 post valve

This is a CGA 870 pediatric regulator which allows for flows of down to 1/32 LPM. A regulator with very low oxygen flows is called pediatric. 

Specifications:

Material: Brass nickel

Wrench required? No

Flows: 1/32, 1/16, 1/8, 1/4, 1/2, 3/4, 1, 2, 3 LPM

Warranty: One year

Connector type: Barb

Price: US$ 79.95

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CGA 540 INDUSTRIAL TANK AND REGULATOR

CGA 540 Industrial Oxygen Cylinder

A medical oxygen tank with a CGA 870 post valve

This is a 566 L (20 CF) industrial oxygen tank with a CGA 540 valve.

Specifications:

Capacity: 566 L or 20 CF

Weight: 13 lbs

Material: Steel

How many Rectal Insufflations can be performed with 1 tank at 200 ml each? 2,830

Prescription needed to fill it? No

Price: US$ 85.00

CGA 540 Pediatric Regulator

A medical oxygen tank with a CGA 870 post valve

This is a CGA 540 pediatric regulator which allows for flows of down to 1/32 LPM. A regulator with very low oxygen flows is called pediatric. 

Specifications:

Material: Brass nickel

Wrench required? Yes

Flows: 1/32, 1/16, 1/8, 1/4, 1/2, 3/4, 1, 2, 3 LPM

Warranty: One year

Connector type: Barb

Price: US$ 79.95

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GENERAL CONSIDERATIONS WHEN BUYING AN OXYGEN TANK

If for whatever reason you would not want to buy Promolife’s above mentioned pre-filled oxygen tanks, you may want to consider a few things. 

New or used? I would always recommend to buy a new tank. Tanks need to be regularly inspected. When you buy a new tank, the inspection is already up to date. When you buy a used tank, you can not be sure that it has been properly maintained. It could contain impurities or it could have been mishandled, there is no way for you to verify. The valve could also have invisible damages or cracks due to age or mishandling. This could also be the case with new tanks but it’s less likely. 

Put a sticker on your tank or mark it in some way. When you get it filled at your local welding shop, make sure you get the same tank back. This is how you maintain a chain of custody.

Capacity: How much oxygen do you need? How long do you want it to last? As long as possible, right? But of course the bigger the tank, the larger and heavier it is. So be prepared to compromise.

But even a smaller tank can last you a long time. Unless you want to use it to make ozonated oil or sauna. Then you will use the oxygen up quickly.

In general, a tank of around 400L will likely last for a few months.

Toggle or post? The valve of a medical tank can have either a toggle or a straight post. A valve with a toggle means that there is a little metal handle attached to the top of the valve. By turning on the handle to the right or to the left one can open or close the valve. Tanks can also come without a toggle, just a straight post. In order to open a valve with a straight post one needs an extra key or oxygen wrench.

CGA medical oxygen tank toogle vs post valve

On the left you see a CGA 870 medical tank with a toggle valve. The toggle serves to easily open the valve. On the right you see a CGA 870 medical tank with a post valve. The post valve requires a wrench to open and close it.

How many RIs can you perform with a tank? Rectal insufflations are one of the most popular ozone applications. So, often people want to know how many of them they will be able to do with one tank filling.

If one takes one RI of 200 ml as the measure, then with a 400L tank one can perform up to 2,000 insufflations ( = 400L / 0.2L).

If you ozonate 2 glasses of water at 1/8 LPM for around 15 min, you will use up around 2 L of oxygen each time.

If you do VI at 1/16 LPM for 10 min, you will use up around 0.63 L of oxygen.

A 30 min ozone sauna at 1/2 LPM will use up around 15 L of oxygen.

Example: If you do per week 3 RI, 2 VI, and ozonate water twice a week, and do one ozone sauna per week, you will use per week around 21 L, in which case a 400 L tank will last for around 5 months.

Regulators: If you never handled an oxygen bottle you may wonder what a regulator is what you need it for. An oxygen cylinder usually comes without any type of regulator. If you opened the tank without a regulator attached to it, the oxygen would escape within minutes because it comes out of a bottle at an extremely high rate. A regulator slows it down and makes sure that that the oxygen flows out at a controlled, steady speed. 

The flow of oxygen is measures in Liters Per Minute, or LPM. 

Ozone therapy with home ozone generators calls for very low flows of oxygen down to sometimes 1/32 LPM. This is the reason why only low flow pediatric regulators are used. 

Pediatric means the regulators are designed for children’s needs. They typically have flows of 1/32, 1/16, 1/8, 1/4, 1/2 LPM. 

Every tank requires a matching regulator. A medical tank has a CGA 870 valve which calls for a CGA 870 regulator. An industrial tank with a CGA 540 valve calls for a CGA 540 regulator. None other will fit the tank.

When shopping for regulators you don’t necessarily want to go with the cheapest one. You want to make sure that the regulator delivers what it promises. As independent testing by a few of our members of the Facebook group “The Ozone Group” has demonstrated, the flow of the cheaper models can vary by up to 50%Promolife‘s and ozonatedoilonline‘s regulators seem to be the most precise ones.

Barb or DISS outlet? A barb outlet allows silicone tubing to be slipped on easily. A DISS outlet requires an additionalChristmas tree type adapter. Diss the DISS, choose a regulator with a barb outlet.

Barb vs. DISS outlet oxygen regulators

An oxygen regulator can come with a DISS or a barb outlet. Barb outlets are more practical. You can slip on a silicone tubing directly onto them. A DISS outlet would require an additional Christmas type adapter.

Safety

When you hold an oxygen tank at home, you hold an object under high pressure. Mishandling could lead to the cylinder turning into a missile and cause damage to humans and property. It is therefore of utmost importance that you secure your oxygen tank. Either keep it in a cart or bolt it to a wall. Keep it away from heat sources, open fire, and children.

 

Oxygen tank with cart
wall bracket oxygen tank

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About Me

Hi! I’m Paola, the Crazy Ozone Lady and self-proclaimed ozone junkie. I've been using ozone on and off for 12 years and still discovering new things every day.

Except for the Ozonette, none of the ozone generators presented on this website have been approved for medical purposes. Any application of the machines for other than water purification is at the sole risk of the user.

 

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Information provided is for informational purposes only and is not a substitute for professional medical advice. No health claims for these products or diagnostic tools have been evaluated by the United States Food and Drug Administration (FDA), nor has the FDA nor any other medical authority approved these products to diagnose, cure, or prevent disease. Since every person is unique, we highly recommend you to consult with your licensed health care practitioner about the use of ozone products in your particular situation. Neither The Power of Ozone nor the manufacturers of these items are responsible for the misuse of this equipment. It is highly advised to receive professional council from a licensed doctor before using Ozone Therapy or any of the mentioned products or tests on yourself.

2 Comments

  1. Sherry

    Hi,
    I just spoke with the person who owns a welding company and he said the medical oxygen and welding oxygen is exactly the same. Their tanks are all steel.
    Can you use steel tanks for ozone therapy or does it have to be aluminum?

    Reply
    • paola d

      Hi Sherry,
      yes, you can use steel tanks for ozone therapy. Just make sure that it the valve and the regulator match.

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