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Oxygen Concentrators - Introduction | Types | Stationary Vs. Portable | How They Work | FAQ


What does an Oxygen Concentrator do?

An oxygen concentrator is a device that provides oxygen therapy to patients at substantially higher concentrations than that of ambient air and keeps the level of oxygen in their blood stable. It is also known as supplemental oxygen. This medical equipment compresses air from around the patient to deliver it to them in a purer form. The supply of oxygen is continuous. Unlike an oxygen tank, it can never run out as long as the battery is powered or the compressor plugged into an electrical outlet. We have a wide range of top-grade stationary and portable O2 concentrators from experienced manufacturers. These oxygen generators or machines provide a continuous stream of oxygen-enriched air and offer a cost-effective and most preferred at-home or on-the-go treatment.

What are the different types of Oxygen Concentrators?

There are 2 Types of Oxygen Concentrators

  • Portable Concentrator
  • Stationary Oxygen Machine

Portable O2 Concentrator – Why Choose Them?

1. Battery Packs for Portable Oxygen Solution

Portable O2 concentrator uses battery packs and allows the oxygen user to stay mobile. It is small in size and lightweight and can be carried around easily. Since the portable concentrator runs on a battery, a fully-charged battery will keep the oxygen machine operable outdoors, unlike a stationary unit.

2. Multiple Power Options for Convenient Oxygen Supply On The Go

Apart from portability, an extra benefit is that this type of portable breathing machine also runs on AC and DC power. Users can plug it into an electrical outlet if at home, or in the car it can be charged through a DC power cord, preserving the battery for outdoor use. Multiple power options of AC and DC power and rechargeable battery make it a convenient machine to have at home and outdoors.

3. Varied Usage Options for POC

The portable variety includes pulse dose concentrators which are smaller in size. Some mobile oxygen units provide a continuous flow of oxygen, but these are larger and have built-in wheels. The portable variety has more options in terms of usage – portable type with high flow settings and personal oxygen concentrators less than 5 pounds.


The Inogen One G5 Portable Oxygen Concentrator is designed for 24 x 7 use and conforms to all applicable FAA requirements for POC use onboard an aircraft. The Devilbiss iGo2 Portable Oxygen Machine is designed with revolutionary SmartDose Technology that adjusts oxygen delivery in real-time to fulfill patient demands. Precision Medical EasyPulse Portable Concentrator comes with 5 pulse dose settings and EasyPulse POC3 Portable O2 Concentrator comes with 3 pulse dose settings.


Stationary Oxygen Concentrators – Why Choose Them?

A stationary concentrator system provides a continuous flow of oxygen. It can be used 24x7 because to start functioning, it just needs to be plugged into a wall socket. The outflow of oxygen is higher (liter-per-minute) than the portable variety type, and the users can wheel it around the house. Stratus 5 Oxygen Concentrator is one of the best examples of this.

Stationary Oxygen Concentrators Vs. Portable Oxygen Concentrators

Stationary Oxygen Concentrators   Portable Oxygen Concentrators
Min. 43dBa and Max. 58dBa Stationary Oxygen Concentrators Vs. Portable Oxygen Concentrators - Which is Best? Min. 40dBa and Max. 45dBa
Heavier than POC Stationary Oxygen Concentrators Vs. Portable Oxygen Concentrators - Which is Best? Lightweight
Confined to in-home use Stationary Oxygen Concentrators Vs. Portable Oxygen Concentrators - Which is Best? Can be carried around on shoulder
Supports long usage hours in one go Stationary Oxygen Concentrators Vs. Portable Oxygen Concentrators - Which is Best? Will most likely be damaged if used for long hours
Oxygen delivery rate of upto 15 LPM Stationary Oxygen Concentrators Vs. Portable Oxygen Concentrators - Which is Best? Oxygen delivery rate of upto 6 LPM
Stationary Oxygen Concentrators Vs. Portable Oxygen Concentrators - Which is Best?

*Please note that there are exceptions that might disobey the above-mentioned specs.*

How does Oxygen Concentrator work?

An oxygen machine takes in the regular air in the room and compresses it using filters and sieve beds to filter out the other gases present, including nitrogen. Concentrated and supplemental oxygen is delivered to the user via a mask or nasal cannula. O2 machines can also be categorized based on their oxygen delivery type:


Types of Oxygen Delivery in O2 Concentrators

  • Continuous Flow Delivery
  • Pulse Dose Delivery

1. Continuous Flow Delivery

If delivery is required constantly and at all times, then a continuous flow oxygen concentrator is necessary. The Inogen At Home Portable Unit for Oxygen Therapy provides continuous flow up to 5 liters per minute.

2. Pulse Dose Delivery

Pulse dose concentrator delivers supplemental oxygen in doses or bursts, every time you inhale. It is based on the breathing rate and the amount of oxygen taken in. Pulse dose O2 concentrators ensure delivery of an appropriate amount of oxygen based on different activity periods – sleep, rest, or daily tasks. For a more sophisticated and efficient solution, pulse dose works better. The Oxlife Independence Portable O2 Concentrator is versatile in nature and delivers oxygen in both continuous flow and pulse dose mode.


The selection of O2 concentrator will also depend on your lifestyle – active or at home. Additional considerations include weight, size, power options, and battery life. If you are looking for a quieter oxygen electric machine, the size will be bigger. Smaller the size, the noisier it is.

Oxygen Concentrator - FAQ

1. What to use with Oxygen Maker Machine?

  • Oxygen Cannula & Mask Oxygen cannulas and masks are used with oxygen machines to deliver supplemental oxygen to the user.
  • Humidifier BottleHumidifier bottles provide humidity to solve sore, dry, or bloody nose problems.
  • Pulse Oximeters Pulse Oximeters are widely used along with oxygen creator machines to help caregivers monitor SpO2 levels in the patient’s blood. These are necessary to ensure they do not receive more than required as it can be harmful to the lungs.
  • Oxygen CompressorOxygen compressors fill compressed oxygen from the concentrator to Home Fill cylinders.
  • Home Fill Cylinders Oxygen cylinders help the user carry supplemental while on the go. An oxygen concentrator can refill them.
  • Carry Bags Carry bags or backpacks are used to carry oxygen machines from one place to another.

2. Where can I buy Oxygen Machines Online?

At Health Products For You, we sell a wide range of O2 concentrators in both portable and stationary varieties from Respironics, Invacare, DeVilbiss, Precision Medical, Inogen, Nidek Medical, etc. The Ultra Quiet Five Liter O2 concentrator from DeVilbiss has a noticeably quiet operation providing 15% typical sound quality improvement. The EasyPulse oxygen concentrator from Precision is a perfect balance between stationary and mobile oxygen generators; it delivers continuous flow and pulse flow in the same unit weighing less than 11.5 pounds. The EverFlo Q Ultra-Quiet oxygen concentrator from Respironics is cost-effective. It produces less heat and needs less electricity to operate.

3. Can anyone buy an O2 Generator Machine?

As per the guidelines received from the U.S. Food & Drug Administration (FDA) O2 concentrators need a prescription for buying. Prescriptions can be faxed to 1.203.616.2851 or emailed to [email protected]

4. How to oxygen levels monitored at home?

Oxygen levels are observed with a small device called a pulse oximeter, or pulse ox. Pulse oximeters are normally placed on a fingertip. These machines use beams of light to indirectly measure the o2 level in the blood without drawing a blood sample.

5. Oxygen Concentrator vs. Oxygen Cylinder?

Oxygen Concentrators and Oxygen Cylinders are used to deliver oxygen to the patients. However, the difference lies between their methods of functioning.

  • The way oxygen is supplied - Oxygen Cylinders have a limited amount of oxygen compressed within, and upon being inhaled by the user, it gets exhausted. Whereas a concentrator filters and generates medical-grade oxygen. It supplies oxygen as long as the battery works. The person can use a single O2 concentrator for a long span by changing the battery every once in a while.
  • An O2 concentrator works like an AC - Unlike oxygen cylinders, concentrators take in air, modify and deliver it in a new form much like an air conditioner. The only difference is that a concentrator purifies the air and makes it suitable for patients with low O2 levels in their blood.
  • Cylinders are exhaustible - With consumption, an O2 cylinder depletes and requires refill or replacement.
  • Dosage methods - All oxygen cylinders deliver oxygen on Continuous Flow. But with concentrators, it tends to vary from device to device since some are more portable and operate on pulse-dose delivery.

6. What are the safety concerns when using oxygen?

  • Do not use the supplemental oxygen machine or an oxygen product near an open flame or while smoking.
  • Place the o2 generator in an open space to decrease the chances of device failure from overheating.
  • Do not block any chimneys on the concentrator since it may affect device performance.
  • Regularly check your machine for any alarms to ensure you get enough oxygen.

7. Which is the Best Oxygen Concentrator?

More Information on O2 Machine

Win The War Against Covid-19!

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N95 Face Mask

N95 Mask

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Latex-Free Exam Gloves


The Latex-Free Vinyl Exam gloves are non-sterile and powder-free. They came in 4 different sizes to ensure proper fit for all, and they meet or exceed ASTM and FDA exam glove standards.

Lysol Disinfectant Spray

Lysol Spray

The Lysol disinfectant spray kills 99.9% of viruses and bacteria on commonly touched, hard, non-porous surfaces in your home. The spray is said to be effective against bacteria, allergies, fungi and viruses including corona virus.

Lysol Disinfecting Wipes

Lysol Disinfectant Wipes

Lysol Wipes are a perfect solution for disinfecting hard-to-spray areas like smart devices and wooden surfaces. These can also be used as a replacement to spray. 80 disinfecting pre-moistened disposable wipes come packed in a dispenser box for easy use and storage.


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Oxygen Refill Systems - All You Need to Know

Ayush Henry Sep 01,2016

Homefill oxygen devices or oxygen transfill systems are popularly known as Oxygen Refill Systems. They are portable oxygen refill devices to be used at home for filling up empty oxygen tanks. By using oxygen concentrator technology, the concentrated oxygen is

Pneumonia and The Need for Supplemental Oxygen

Laura Castricone Mar 21,2022

Pneumonia is an inflammation of the lungs which causes the air sacs to be filled with pus or fluid. Pneumonia is caused by either a bacterial, viral, or fungal infection. When the lungs get full of debris, it becomes difficult

Oxygen and Travel - Using Oxygen Concentrator While Traveling

Taikhum Sadiq Jul 14,2016

Oxygen concentrators are generally used for oxygen supply in healthcare services, especially in areas where liquid or pressurized oxygen is either too dangerous or not feasible, such as at your home or in portable clinics.


Frequently asked questions

An oxygen concentrator is a medical device that delivers pure oxygen into the body of a patient by means of a nasal cannula or mask. It takes in air from the surroundings, compresses it, removes the nitrogen from it via a filter and sieve beds leaving 87-95% of oxygen in the air. This oxygen is then delivered to the patient.

Portable oxygen concentrator is an oxygen therapy device that can easily be carried around. It offers therapy to those who are on the go and need more oxygen concentration than the ambient air level. It is small in size and lightweight. Portable oxygen concentrators can even be carried on-flight by air travelers. An FAA ruling allows FAA-approved portable oxygen concentrators to be carried on US airlines.

Stationary oxygen concentrators are larger and heavier compared to portable oxygen concentrators. They also provide high flow rate and are recommended for patients who require substantial oxygen supply. Stationary oxygen concentrators deliver 3 to 10 liters of oxygen per minute while portable models supply 1 to 5 liters per minute.

There are two types of portable oxygen concentrators - pulse dose and continuous flow. Pulse dose oxygen concentrator is ideal for use in the day time and delivers air through a nasal cannula only when the user inhales. This type is compact and has a greater battery life. On the other hand, a continuous flow oxygen concentrator delivers constant air flow and is ideal for night-time use.

A home oxygen concentrator is safer and more cost-effective when compared to a traditional oxygen cylinder. Now there is no need to carry around heavy and unwieldy oxygen cylinders. Plus, oxygen is readily available with a concentrator and, unlike an oxygen tank, an oxygen concentrator allows unlimited supply of oxygen and the patient can never run out of oxygen. Also, there is no risk of leakage. Another major benefit is the ease with which one can carry it around, even when flying.