Oxygen Refill Systems - All You Need to Know

Oxygen Refill Systems - All You Need to Know

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Homefill oxygen devices or oxygen transfill systems are popularly known as Oxygen Refill Systems. They are portable oxygen refill devices that are used at home to fill empty oxygen tanks. By using oxygen concentrator technology, the concentrated oxygen is extracted from room air to oxygen refill machines. This gives the user an unlimited refill of oxygen. The concentrated air is then pressurized by the refill system to fill the oxygen cylinders. Patients get more liberty as now they don’t have to depend on oxygen vendors for a refill.

Why use an Oxygen Refill System?

  • Greater freedom and independence for oxygen patients
  • Saves a lot of precious time
  • Saves money spent on pickups and deliveries
  • Gives the comfort of easy time scheduling
  • Independence from a third party
  • Assurance of oxygen availability at all times

When to use Home Oxygen Refill Systems?

An empty oxygen cylinder can be refilled at any time. It does not matter if the patient is away shopping or taking a nap. There are no restrictions on refilling the cylinder. Turn on the machine and attach the empty cylinder to refill the oxygen tank at home. After refilling, the portable oxygen tank can be used instantly or can be kept in as a reserve. Oxygen refilling also saves the space required for storing the number of reserve tanks. Always make sure that the cylinder is filled with oxygen so as to prevent emergency situations and risk the life of the patient in any case. There is no harm in having extra oxygen stored in the tank.

Where to use an Oxygen Refill Machine?

An oxygen refill system can be used at places that have a regular supply of 110-120-volt electricity. The most common places are home, offices, hotels, and even cruiser boats. Oxygen tank refill is not rocket science and so a basic knowledge of appliances can help a person easily plug in the concentrator and fill in the oxygen.

Examples of Oxygen Refill Systems

1. Invacare HomeFill Continuous Flow D Cylinder

Invacare HomeFill Continuous Flow D Cylinder fits the Invacare HomeFill Oxygen System and can provide an oxygen supply for active HomeFill System users. Oxygen duration can vary depending on the users' oxygen needs. Typically, a set of two liters per minute can provide three-and-half hours of oxygen.

Buy Invacare HomeFill Continuous Flow D Cylinder On Discount
Invacare HomeFill Continuous Flow D Cylinder

2. Precision Medical EasyPulse5+6 Oxygen Conserving Regulator

Precision Medical EasyPulse5+6 Oxygen Conserving Regulator has 6 continuous flow settings, to compliment the 1 thru 5 pulse settings. Even with the added continuous flow settings, it weighs in at a mere 9.9 oz and is only 4.75 inches long, making it still the smallest and lightest conserving regulator available. With the conserving ratio of up to 5.7 to 1, you enjoy the same great savings you have always enjoyed with the EasyPulse5.

Precision Medical EasyPulse5+6 Oxygen Conserving Regulator
Precision Medical EasyPulse5+6 Oxygen Conserving Regulator

3. Invacare HomeFill Oxygen Compressor

Invacare HomeFill Oxygen Compressor is used to supply pressurized oxygen to fill Invacare proprietary gas cylinders for ambulatory use while the patient receives therapeutic oxygen from an accessory oxygen concentrator. This compressor can fill cylinders for portable use by ambulatory patients. It provides an unlimited, refillable oxygen supply, and ensures oxygen purity is always greater than 90 percent.

Buy Invacare HomeFill Oxygen Compressor On Sale
Invacare HomeFill Oxygen Compressor


4. Invacare HomeFill CGA870 Post Valve Cylinders 

The Invacare HomeFill CGA870 Post Valve Cylinders fits the Invacare HomeFill Oxygen System perfectly. These are specifically designed to facilitate the active users of the HomeFill System with a regular oxygen supply. They are manufactured to store supplemental oxygen for use with a CGA870 post valve compatible conserver or regulator. These Cylinders are used by patients who may have difficulty extracting oxygen from the air they breathe. Oxygen duration can vary depending on the oxygen needs of the user. 

It is a lightweight, aluminum, oxygen cylinder that has two parts to it, one is the Toggle Valve and another is Cylinder Fill Port. The user can fill the Invacare Homefill tanks by following these steps.

Before you try filling the cylinder please check the cylinder pressure, rotate the toggle valve clockwise to close it properly, and detach the regulator (conserver). Remove the post valve cover (situated on the cylinder) and the connector fillport covers (situated on the compressor). There is a ring-like structure on the compressor unit, push the ring down for a moment to reset the connector. Get hold of the cylinder assembly, and place the cylinder in the compressor cradle. Line up the cylinder fillport with the connector fillport. Now pull the ring up and push the cylinder assembly down, this way you can connect the cylinder fillport to the connector fillport. Switch ON the compressor power button, once the cylinder is full, press the switch off. Hold the cylinder assembly, with your other hand grasp the ring present on the connector fillport and push it down. After that, remove the cylinder assembly from the connector fillport by lifting it up, once the cylinder is disconnected release the ring. Then separate the cylinder from the cradle. Now place the fillport covers back in their places and install the CGA870 Post valve conserver. Finally, put the toggle valve back and rotate it anti-clockwise.

Invacare HomeFill CGA870 Post Valve Cylinders

How to refill Oxygen Tanks?

  1. Place an oxygen refill machine on the top of an oxygen concentrator and connect them to each other. Plug them into an electrical socket and press the power button to turn them on.
  2. Connect your oxygen tank or cylinder to the refill machine. Make sure that the oxygen conserver or regulator on the tank is turned off. If you are not using a conserver or regulator to fill the oxygen cylinder, verify that the cylinder valve is closed to ensure proper filling.
  3. Remove any protective caps from the oxygen tank. When not in use, replace these protective caps to prevent dust buildup.
  4. Gently pair the cylinder fill port of the refill machine with the cylinder. You will hear an audible click when the cylinder is secured to the oxygen compressor.
  5. Press the fill button to begin filling your oxygen tank. The filling might take some time depending on the size of your cylinder.
  6. You will be indicated when the tank is full. Most machines automatically shut off when the canister is full.
  7. Turn off the power button and release the cylinder from the oxygen refill system.


Oxygen tank refill is an important part of respiratory health and ensuring that your tank has enough oxygen is as important as ensuring you breathe. Choose the right oxygen devices and delivery systems to ensure the safety of the patient as well as a healthy treatment process.


Portable Oxygen Concentrator FAQ

1. How often do you have to refill oxygen tank?

An oxygen concentrator is an electric machine that stores oxygen from the air. One can use an oxygen concentrator or refill the small liquid oxygen case with a big tank at home, and the oxygen delivery service shall fill the large tank every 1 to 2 weeks.

2. Can oxygen concentrators be harmful?

It is always advised to opt for an oxygen concentrator only when prescribed by a medical practitioner to avoid serious health problems, such as oxygen toxicity caused by receiving too much oxygen. Having said that, not getting enough oxygen into the blood, a condition called hypoxia could damage the heart, brain, and other organs.

3. Does using oxygen make your lungs weaker?

Home oxygen therapy is not addictive; thus, it does not weaken the lungs. The patient can gain maximum benefit by using oxygen for the amount of time prescribed by the doctor.


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