Oxygen Concentrator FAQ

What is an Oxygen Concentrator?

An oxygen concentrator is a type of oxygen administration device used to treat a variety of respiratory ailments including COPD and cystic fibrosis. Oxygen concentrators are similar to oxygen tanks in that they deliver medical-grade oxygen which is inspired via a nasal cannula or oxygen mask. Concentrators were introduced around the 1970s and portable versions became more widely available in the early 2000s.

The key difference between concentrators and oxygen tanks is that oxygen concentrators contain no compressed oxygen or liquid of any kind. Liquid oxygen is a highly incendiary gas and must be used with training. As a result, oxygen concentrators don’t have many safety risks that are commonly associated with compressed oxygen. They’re also much easier to use and less costly which has made them popular as a long-term treatment option for many pulmonary diseases.

Liquid Oxygen Leak at Nashik Hospital in April 2021

Nashik Hospital Liquid Oxygen Compressed Cylinder leak April 2021

How Does an Oxygen Concentrator Work?

Earth’s atmosphere contains about 78 percent nitrogen, 21 percent oxygen, and the remaining 1 percent is made up of a variety of other gases. For someone with healthy lungs, this is enough oxygen, but for someone with impaired lung function, a higher concentration of oxygen is needed. An oxygen concentrator is designed to take in air, remove the nitrogen and distribute a higher grade of oxygen. In COPD patients, this can reduce shortness of breath, chronic pain, and improve overall quality of life.

Since oxygen concentrators are electronic devices, you’ll need to have access to some source of power. Home oxygen concentrators need to be plugged into a wall outlet but portable oxygen concentrators have batteries that can be charged and attached to your oxygen machine to power it wherever you go. Most oxygen concentrators allow you to control “flow rate,” or the amount of oxygen that comes out of the device in a given amount of time. The lower the flow setting, the longer the battery will last.

What is the Difference Between Pulse Flow and Continuous Flow?

Oxygen concentrators are generally divided into two categories: pulse flow concentrators and continuous flow concentrators. Continuous flow is similar to what you’d expect from an oxygen tank or liquid oxygen tank. These devices will put out oxygen in a constant stream and are usually measured in liters per minute (LPM). Pulse flow machines are more advanced and actually have the ability to measure your breathing rate. When you inhale, a pulse dose machine will put out a small dose of oxygen called a “bolus.”

One of the biggest benefits of pulse flow concentrators is that they are almost always smaller and lighter than their continuous flow counterparts. Portable oxygen concentrators like the Inogen One Dedakj 6 l  weigh just 13 pounds meaning it’s light enough to carry over your shoulder or even hold in your hands while you go about your day and it’s even small enough to fit in a purse, but we don’t recommend doing that! Continuous flow portable oxygen concentrators like the offer plenty of power and a high oxygen output but it’s nowhere near as portable. You’ll typically need to use a wheeled cart in order to transport your continuous flow POC.

What flow rate do I need?

Oxygen flow rate and concentration percentage is a medical decision to be made by your RMP aka family or specialist doctor. This is a question that can only be best answered by a lung function test administered at a hospital. However, your family doctor who knows the patient well can also recommend the right treatment and equipment needed. An oxygen concentrator can help a person who is not critical to breathe more easily and receive home care till a hospital bed becomes available.  Example chart for flow rate and concentration of Dedakj Model 1-A

Oxygen percentage chart of DedakJ 1A



Use Distilled Water only for  filling Hydration Bottle

Only distilled water from a good brand is to be used for filling the hydration bottle. Distilled water can be purchased at chemists or hospital medical shops. ( Distilled water is different from Bisleri or bottled water).

The hydration bottle needs to be washed at least once a week, with mild detergent, and dried before usage. Please see the consequence of not using distilled water( PreviewPreview3:06Airborne killer black fungus linked to COVID-19 detected in …YouTube · WION16-Dec-2020).

Service of Oxygen Concentrators

Oxygen Concentrator requires filter cleaning at regular intervals, depending on usage. The hydration Bottle must be cleaned and washed and dried thoroughly once a week. ( wash with mild detergent only – don’t use sanitiser or any other hard chemicals.)

It also requires changing the main air filter ( every 1000 hours of use) & Molecular Sieve filter ( every 3000 hours of use) ( or if the peak oxygen concentration drops below 90%). These spares will be available from AriaMeds .

Are Oxygen Concentrators Noisy?

One of the biggest concerns many people have about purchasing an oxygen concentrator for the first time is the sound that they will make. While oxygen concentrators aren’t as quiet as compressed oxygen tanks or liquid oxygen tanks, they are much quieter than most people expect. In general, most oxygen concentrators vary in sound output from around 30 decibels (dBA) to around 50 dBA. This is about the volume of a quiet whisper or a quiet conversation.

One thing to note about oxygen concentrator sound is that the lower the flow setting you’re on, the quieter they will be. So, unless you’re running it on its highest setting, you shouldn’t have too much to worry about. You’ll be able to use your portable oxygen concentrator in a library or during a church service without bugging anyone. Many oxygen patients describe it as the sound of a refrigerator; at first, you’ll hear it, but after a while, you won’t even notice it.

The accessories you use with your oxygen concentrator can also affect how much noise they make. For example, if you use carrying options, they may help to conceal some of the sounds of the oxygen machine. However, you should take care not to use your own carrying bag to store your unit because these ones are specially made to ensure all of the intake vents are open.

Does Insurance Pay for Oxygen Concentrators?

Out of all of the questions we’ve answered on this page, this one is by far the trickiest and the least “straightforward.” The short answer is “No.” Medical and most other health insurance companies will not help you pay for a home oxygen concentrator or a portable oxygen concentrator. However, it’s a little more complicated than that.

Insurance classifies oxygen concentrators as “durable medical equipment” (DME). According to Insurers, the rental of oxygen equipment prescribed by your doctor is covered if you meet certain criteria. But this only pertains to medical oxygen tanks. The reason they likely do this is that oxygen concentrators have a higher upfront cost and health insurance companies look for any way they can to avoid paying you the money you’re due. Insurance views oxygen concentrators as “luxury items” rather than a medical necessity.

While it’s unfortunate you won’t receive compensation for purchasing an oxygen concentrator, there are other options available to you. We also run a lot of sales on our top oxygen concentrators, so keep an eye out for those as well.

Where Can I Buy an Oxygen Concentrator?

If you’re looking for portable oxygen concentrators for sale online, it’s imperative that you do your research and understand what you’re buying. There are many different scams out there that you can easily fall for if you aren’t careful. For example, you may see advertisements for cheap portable oxygen concentrators on popular e-commerce sites. While these oxygen machines may be affordable, they don’t provide you with medical-grade oxygen.  And choose AriaMeds for the best price and quality with a warranty on most products.

Another thing you should take note of is the difference between “medical-grade oxygen” and “recreational oxygen.” Some popular outdoor mountain sites and others will offer small portable oxygen cylinders that can be used while hiking or climbing at high altitudes. These are NOT designed for treating respiratory conditions and there is very little evidence to suggest they’re even beneficial.

If you want to get a high-quality portable oxygen concentrator it’s best to stick with popular and reputable brands like Dedakj, Oxymax, etc. While there are higher upfront costs for these portable oxygen concentrators, they’re far more durable and will last you for many years to come. What’s more, some like Oxymax often backed by great warranties that protect your purchase. The same can’t be said for cheap oxygen concentrators you can find online.

How Long Do Oxygen Concentrators Last?

Every oxygen concentrator is different, however, if you purchase from a reputable dealer and you choose a respected brand, you can expect your oxygen concentrator to last around 4 to 7 years. It’s difficult to nail down an exact time frame because every oxygen patient has different needs. Some people will need to run their oxygen concentrator 24/7 but others will only need to use it several hours a day.

In the long term, most oxygen patients find that oxygen concentrators are far more affordable than oxygen tanks. While oxygen tanks have a low upfront cost, you need to constantly pay to refill them and if you want to refill them on your own, you’ll need to buy a special home oxygen concentrator anyways. This doesn’t even take into account the fact that you’ll likely want to have a second oxygen tank as a backup.

Is AriaMeds a Legitimate concern for Oxygen Concentrator and other Medical Supplies?

AriaMeds is a newly formed division of a 9-year-old Private Limited co. called Kall Trip P Ltd. We are both travel agents and Air cargo Agents. We have diversified into Covid related products as there was a huge demand and very little supply.  AriaMeds website is under development, so currently, we are using the hotel division website for the online store.

Kall Trip P Ltd CIN no U63000DL2011PTC225625 (use this Govt of India link to confirm legitimacy- https://www.mca.gov.in/mcafoportal/findCIN.do)

Udyog Aadhaar Number – MH18D0134665
D-U-N-S Number: 873-935-328
Kall Trip P Ltd GST No. 27AAECK4949B1ZK

Kall Trip P Ltd – contact Mr Suresh on (M) (WhatsAPP) +91-98925-27420

( Office) +91-22-41642175 / 41642125  – Accounts – +91-22-4916-3029

Email online_store@kalltrip.com Web Store: https://bit.ly/Shopam

Contact Address – A-304, Rustomjee Central, Andheri Kurla Road, Chakala, Andheri East, Mumbai 400-099, India

Godown Address – Ghar no 255, Purna Village, Bhiwandi, Maharashtra 421302, India

Is AriaMeds Distributing Covid19 related products including Oxygen Concentrators?

Yes, we are importing the products on our own IEC ( Import Export Certificate) in name of Kall Trip P Ltd along with distributing other imported products. ( Please see some photos of our goods at Godown in Bhiwandi)

Dedakj 1 A Box at Godown ( Photos /Video of Director of Kall Trip with the boxes)

 Dedakj 1 A Box (Shipment)

Boxes of Dedakj 1A at Godown

Mini Truck Dedakj1A

Video of Loading at Airport


While it may seem intimidating trying to purchase an oxygen concentrator, we aim to help every patient find the best oxygen concentrator for their wants and needs. There are a lot of factors to take into consideration such as weight, size, total oxygen output, battery life, and ease-of-use, so if you’d like to know more or your question wasn’t answered here, please feel free to  send us an email on online_store @kalltrip.com or Live Chat with us.