Portable oxygen concentrators have become increasingly popular in recent years, which is not a minor feat given that they did not exist 20 years ago. They have become an important component of additional oxygen therapy, providing a convenient and reliable source of oxygen to those who need it without the bulk of safety problems associated with oxygen tanks.

In this post, we will share detailed information regarding portable oxygen concentrators and the best portable oxygen concentrators available in India. You can buy or rent these from your location or online.

Portable Oxygen Concentrators can be an important part of the lives of the elderly and those who suffer from respiratory problems, such as chronic obstructive pulmonary disease (COPD), allowing them to receive additional oxygen while maintaining an active and independent lifestyle. These devices also offer a variety of benefits for others who are looking for better alertness, better blood circulation, less chronic fatigue, and overall faster recovery of any type of physical exertion. They can even help with hangovers!

Portable Oxygen Concentrators differ significantly, and this guide can help you sort out some of the features, specifications and other factors you need to consider to find the right one for you. We have also included several models that we believe stand out from the rest.

KEY CONSIDERATIONS while buying Oxygen Concentrator

How it works

A concentrator uses a complex set of processes to remove nitrogen from the air to create a purer oxygen flow. The air around us contains about 21% oxygen, the rest is largely nitrogen. An oxygen concentrator is able to draw this air, concentrate it at 90% or more of pure oxygen, and then deliver it to the user via a nasal cannula or mask. This improves the user’s oxygen saturation level, providing greater comfort and a variety of other benefits. The machine also incorporates a cooling system to prevent it from overheating.

Size and weight

The lighter and more cumbersome a hub is, the more portable it is.

Size: Portable oxygen concentrators are available in a variety of sizes, from compact models a few inches high that can be attached to your waist to larger and heavier units near two feet high that are still light enough to be easily moved around the house.

Weight: These machines weigh from a few pounds to 30 pounds or more. For larger models, portability is more in terms of freedom to move around in your home rather than in the world. It can be done, but it is harder to be active with a 30-pound machine in tow.

Pulse dose vs. continuous flow

Portable oxygen concentrators offer two different types of air delivery: pulse dose and continuous flow. Knowing the difference between the two is important when you are looking for the right hub for you. Many high-end portable oxygen concentrators offer both a pulse dose and continuous flow options.

Pulse dose: The machine monitors your breathing rate and uses it to provide you with the appropriate amount of oxygen. This method uses less power and is generally better for people with a higher level of activity.

Continuous flow: As the term implies, this delivery method involves a steady and continuous flow of oxygen to the user. This method uses more power and results in more wasted oxygen. Continuous flow is generally better for a less active patient whose breathing remains constant.


Oxygen rate and concentration

Rate: Oxygen level refers to the amount of oxygen the concentrator can provide, measured in litres per minute. Most of these devices provide one to five or one to six litres per minute, with some capable of two to nine litres per minute. Any portable oxygen concentrator should allow you to easily adjust the air flow from the low end to the high end.

Concentration: You also need to know what oxygen concentration is at different levels. For example, a concentrator should be able to reach 90% or more of oxygen concentration at a low rate, while higher rates will tend to be higher in the 30% range. The best concentrators offer a higher level of concentration at a higher rate.

Noise level

It’s a good idea to find out how loud the machine is before you purchase it. Is it quiet enough to seem like white noise in the background, or does it make a constant racket that will slowly drive you crazy? Check user reviews for each product to find any potential noise issues. Also verify if the concentrator has a sleeping mode, which can result in much quieter nighttime operation.


You also want to know how much maintenance your portable oxygen concentrator requires before you buy it. Does it need periodic cleaning, and how extensive is that cleaning? Elements you might be regularly cleaning include filters, tubes, water tank, and nasal cannula.

Also check whether some elements, such as filters, need to be changed regularly. The manufacturer can provide you with a full cleaning/maintenance schedule.


Larger models are powered through a wall plug, while many of the more compact and portable concentrators use both AC power and rechargeable batteries. If a unit uses batteries, know how long a charge lasts and how long it takes to recharge. If you plan to use your portable oxygen concentrator in the car, check that it either ships with a car adapter or that you can easily purchase one.

Control panel

Some oxygen concentrators have an LED control panel. Check that the screen is easy to read, including at night. If the machine will be used primarily by an older person, make sure the font size is easy to read.


Some portable oxygen concentrators include a water reservoir, which provides a simple way to keep nasal passages from drying out (a common problem with nasal cannulas). If an oxygen concentrator does have this feature, you should still be able to use the machine even when the water reservoir is empty.


A quality portable oxygen concentrator should include an alarm system that alerts you when it malfunctions, when the cannula is disconnected, when the battery is low, and other status issues. Some also remind you when maintenance is necessary.


Most portable oxygen concentrators have a timer, so you can easily set it to shut off after a certain period of time, for example, so it won’t run all night. The amount of time you can set varies from machine to machine.


Any included extras vary depending on the portable oxygen concentrator you purchase, but some to look for include a remote, wheels, user guide, and oxygen tubing and breathing devices such as masks and nasal cannulas.

IMP Tips

  • Never allow smoking or open flames around your portable oxygen concentrator.
  • Choose an active carbon mask to filter out mold, pet dander and odors.
  • Do not overfill the humidifier tank. This can cause water to recoil the hose and suffocate the person using it.
  • Make sure additional parts are readily available if you need them. These include replacement filters, nasal cannulas, and extra air tube.
  • Do not block the heat dissipation port. If your hub has a heat dissipation port, make sure it is not blocked in any way. A blocked port can cause heat to build up, which can harm the machine.
  • Never leave your hub in the car. This is especially important during the hot summer months. In addition to the possibility of flight, high temperatures can easily damage the concentrator’s circuits.
  • Choose nasal cannulas over oxygen masks. Nasal cannulas restrict the user less, making it easier to talk, drink and drink.

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FAQ Oxygen Concentrator in India

What does an oxygen concentrator do?

An oxygen concentrator is a device that concentrates the oxygen from a gas supply (typically ambient air) by selectively removing nitrogen to supply an oxygen-enriched product gas stream.

How much does it cost to buy an oxygen concentrator?

Oxygen concentrators are available as 3, 5, 8 and 10 LPM units. Most common is 3 or 5 LPM. A 10 LPM can be used for two patients who have low oxygen requirement. A 5 LPM will cost Rs 40,000-60,000 and a 10 LPM can cost upto Rs 1.60 lakh.

What should I look for when buying an oxygen concentrator?

What to Look for When Buying a Portable Oxygen Concentrator
Portability. A portable oxygen unit should be, well, portable. …
Durability. No matter how careful you are, it’s inevitable that your unit will suffer some bangs and bumps, particularly during travel. …
Oxygen Delivery Options. …
Display and Alarms. …
Filters. …
Warranty. …
Noise. …
Battery Life.

Does using oxygen make your lungs weaker?

Unfortunately, breathing 100% oxygen for long periods of time can cause changes in the lungs, which are potentially harmful. Researchers believe that by lowering the concentration of oxygen therapy to 40% patients can receive it for longer periods of time without the risk of side effects.

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