2025 FAQs About Oxygen Concentrators

How do oxygen concentrators work?

Oxygen concentrators work by taking in room air, then filtering and purifying it. Initially, ambient air (which contains approximately 78% nitrogen and 21% oxygen) is drawn into the device.

The concentrator then uses a molecular sieve (usually made of zeolite) to absorb the nitrogen and expel the surrounding gas. This process effectively concentrates the oxygen content, allowing the device to deliver up to 90-95% pure oxygen to the user through a mask or nasal cannula.

The adsorbed nitrogen is periodically released as the sieve regenerates, ensuring continuous operation of the concentrator.

What is the difference between an oxygen tank and an oxygen concentrator?

Oxygen tanks and oxygen concentrators have the same primary purpose—to deliver oxygen to the user—but their operation and functionality are very different. Oxygen tanks store a predetermined amount of oxygen under pressure.

Once the supply is exhausted, the tank must be refilled or replaced. In contrast, an oxygen concentrator extracts and purifies oxygen from the surrounding air, eliminating the need for refilling.

While tanks provide 100% pure oxygen, concentrators typically provide oxygen at concentrations up to 90-95%. Tanks are often bulky and can present storage challenges, while concentrators, especially portable ones, are designed to be easier to move and provide a continuous supply.

 

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What are the advantages of oxygen concentrators?

Oxygen concentrators offer a variety of advantages that make them a popular choice for many patients. They provide a continuous supply of oxygen, eliminating the need to frequently refill oxygen tanks.

These devices are often more cost-effective in the long run, as they extract oxygen from the surrounding air and don't require constant refilling. Many models are portable, giving users the freedom to travel and carry out their daily activities without being too hindered.

Additionally, oxygen concentrators are often low-maintenance, eco-friendly, and available in a variety of sizes to suit individual needs.

What are the disadvantages of oxygen concentrators?

While oxygen concentrators offer many advantages, they also have their limitations. One of the main limitations is their reliance on electricity, which can be challenging in areas with frequent power outages.

The initial investment for an oxygen concentrator can be high, which can deter some potential users. Additionally, not all models are suitable for all patients, especially those who require very high flows.

Some users may find certain models cumbersome or noisy, and like any machine, there is a reliance on the proper functioning of the device to ensure a continuous supply of oxygen.

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How long does a portable oxygen concentrator last?

The lifespan of a portable oxygen concentrator depends on its brand, model, and maintenance practices. Typically, a well-maintained device can operate effectively for 3 to 7 years or more. However, when discussing usage time, battery life comes into play. On a full charge, most portable models can operate for 4 to 10 hours, depending on the settings and model of the device.

What are the risks of using oxygen therapy?

While oxygen therapy can be beneficial for many people, it also has potential risks. Breathing high concentrations of oxygen for long periods of time can lead to oxygen toxicity, which can damage the lungs. There is also a risk of nasal congestion, nosebleeds, or earaches due to the continuous flow of oxygen. Oxygen supports combustion, so if a patient uses or stores oxygen equipment near an open flame or flammable materials, the risk of fire increases.

 

dedakj oxygen concentrators

TOP oxygen concentrator supplier,reliable product and service

DEDAKJ oxygen concentrator manufacturer provides various models of 1-9L home oxygen concentrators, up to 20LPM medical oxygen concentrators as well as the 2 lbs lightweight portable oxygen concentrator for traveling.

This is top-rated DEDAKJ oxygen concentrator supplier, providing both DEDAKJ 10- 20 liter medical oxygen concentrators and 1-9 liters home oxygen breathing machines, and DEDAKJ oxygen accessories parts. 

For more information on oxygen concentrators, please feel free to consult us.
And you are we welcome to place the order in our official store directly.


We are operating the USA, Europe, Mexico and UK local warehouses. 
Usually you can receive the parcel within 3-6 days,very fast shipping time.
More important, as the honorable oxygen concentrator supplier, we can offer 1 year quality warranty to our customers! 

 

 

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Steps: Add a portable oxygen machine and the RE-R1L home unit to your cart — get the home device free at checkout.
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Completion of these steps is mandatory to retain your free device.

 

 

 

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Customer Care Program: 

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Buy a Mini Oxygen Machine —Get a FREE RE-R1L Home Oxygen Machine (1–8L)!

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Customers Care-$80 Gift Card, Open Enrollment Period Is Here

We offer specialized care for our customer. Discover Customers Care Plan that connect you to us oxygen concentrator manufacturer.

 

Understanding each part of Customers Care Plan

 

Customers Care Plan Enrollment Process

Step 1

Please shoot a product video (≥35s) which shows the good using feeling of our machine.

Step 2

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You tube / Facebook etc.

(Please note: the link of our official website must be included in the description of the short video.)

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You can get a free value $80 original oxygen accessories.

 

Customers Care-$80 Gift Card Advantage

When you choose a Customers Care-$80 Gift Card Plan, RESPIREASY is your best option in providing quality oxygen breathing care to you. We are here for you, every step of the way.

Accessibility  – We have an extensive network of healthcare professionals providing comprehensive oxygen breathing care.
Diversity  – We are a culturally aligned care team, committed to embracing diverse cultures with compassion and understanding.
Excellence – We strive for the highest quality in patient  breathing care.
Collaboration – We work as a team with our physicians, localized clinics, and ancillary providers, bringing a full spectrum of care to our patients.
Innovation – We embrace new ideas and technologies to enhance patient care and outcomes.

Customers Care FAQ

 

Who is eligible for Customers Care Plan? 
People who are our customers and holding our oxygen concentrators directly from our official store.

When can I enroll in Customers Care Plan?
Now, just please follow our Enrollment Process (3 Steps above).

What is the next step after I enroll in Customers Care Plan?
Contact our official staffs, you can get a free value $80 original oxygen accessories  (filters/ oxygen tube/ oxygen mask etc.) 

dedakj oxygen  concentrator parameters

 

👀Compare All DEDAKJ Models

Compare All DEDAKJ Models: to get the most suitable oxygen concentrator machine


All DEDAKJ RESPIREASY Oxygen ConcentratorsHome Oxygen Generator; Portable Oxygen Machine; and Medical-Grade O₂ Therapy Units


Compare the key features, oxygen purity, flow rate, and battery life differences of each model in the comparison chart below.


Mini Portable Oxygen Concentrators

 

 



Feature Cheap Price Continuous Flow Upgraded Smallest Low Noise TOP
Model TB-1 Y5 Y7 RES-4/5/6 REA-6/7 REC-6/7/8/9
Flow rate 3L/Min 5L/Min 7L/Min 4/5/6 L/Min 6/7 L/Min 6/7/8/9 L/Min
Size (cm) 25x15x12 19.8x9.3x21 17.5x8.6x19 15x7.5x16 17x8x19.8 17.8x8x21
Weight (Pound) 4.4 4.6 4.1 2.4 3 4.8
Product Link >>>>Click >>>>Click >>Click >>Click >>Click >>Click

1-9 Liters Home Oxygen Concentrators

 

 

Feature Low Price Low Price Powerful 2025 Newest Upgraded Classic
Model RES-R1L RE-E1L RE-P2L RE-S2L DE-1A/1B/1LW DE-C1L DE-Q1W DE-2A/ 2AW DE-2SW/ 1SW
Flow rate, L/Min 1-8L/Min 1-8L/Min 2-9L/Min 2-9L/Min 1-7L/Min 1-7L/Min 1-8L/Min 2-9L/Min 2-9L/Min
Function Oxy Making+Nebulizer Oxy Making+Nebulizer Oxy Making+Nebulizer Oxy Making+Nebulizer Only Oxygen Oxy Making+Nebulizer Oxy Making+Nebulizer Only Oxygen Oxy Making+Nebulizer
Size (cm) 24x15x25 18x31x31 37x18x29 37x28x19 34x18x31 20x21x28 36x19x34 40x18x38 35x19x31
Weight (Pound) 8.8 11 11.5 11.5 14.3 10.5 11.5 17.6 15.8
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10-60 Liters Medical Oxygen Concentrators

 





Feature Medical Standard Medical Standard Medical Standard Medical Standard
Model RE-M5L RE-M10L RE-M20L RE-M60L
Flow rate, L/Min 1-5L/Min 1-10L/Min 1-20L/Min 1-60L/Min
Size (cm) 34.8x28x51 36x37x60 81x44x67
Weight (Pound) 37.5 59.5 169.7
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