Learning about Portable Oxygen Concentrators

A portable oxygen concentrator uses air separation technology to remove nitrogen from the air and purify it. The purified oxygen concentration can normally reach over 90%, helping people with hypoxia improve their quality of life. It is an ideal source of oxygen for dynamic oxygen inhalation, both indoors and outdoors.

Personal groups suitable for portable oxygen concentrators include those experiencing altitude sickness, those with respiratory diseases such as COPD and emphysema, those with cardiovascular and cerebrovascular diseases, those with the three highs, pregnant women, those recovering from surgery, those working or living in hypoxic environments for a long time, and those with sub-health conditions.

Is there an age limit for oxygen inhalation?

There is no strict age limit; it depends on whether you are experiencing hypoxia. When using an oxygen concentrator, follow the guidance of a professional doctor and select the appropriate flow rate, concentration, and duration to avoid adverse reactions. Children should be supervised by a guardian.

Who should use an oxygen concentrator with caution?

Healthy individuals with normal blood oxygen saturation (above 95%) at atmospheric pressure, those with excessive airway secretions or infections, and patients with brain damage should consult a doctor before using an oxygen concentrator.

How to Choose a Portable Oxygen Concentrator? 

01. Choose Type: Healthcare or Medical

Generally, oxygen concentrators are categorized by function as healthcare or medical types. The primary difference between the two types lies in whether they can maintain an oxygen concentration of (90±3)% at any oxygen flow rate.

Although healthcare oxygen concentrators can also produce oxygen using molecular sieves and offer multiple oxygen flow rates, they are strictly speaking household appliances. The oxygen concentration of healthcare portable oxygen concentrators is low and unstable, and is affected by the flow rate: higher flow rates result in lower concentrations, making them unable to provide oxygen therapy services that meet therapeutic standards.

Medical portable oxygen concentrators are products that have been reviewed and approved by the National Medical Products Administration and have received a medical device approval document. They are considered medical devices. Their oxygen production capacity is strong, and the output oxygen concentration remains constant above 90%, unaffected by fluctuations in oxygen flow rate. This ensures high-quality oxygen therapy for patients outside the hospital.

02 Parameter Selection

① Oxygen Concentration: This metric is also a key criterion for distinguishing healthcare oxygen concentrators from medical oxygen concentrators.

With healthcare oxygen concentrators, oxygen concentration decreases as flow rate increases, making it difficult to maintain a concentration above 90%. At the highest setting, the oxygen concentration is as low as 30%, far below the standard for medical oxygen.

Medical oxygen concentrators maintain oxygen concentration above 90% without decreasing with increasing oxygen flow rate. They are effective in treating diseases, particularly for outpatient treatment of COPD. Home oxygen therapy has become an industry-recognized and doctor-recommended treatment option.

Portable medical oxygen concentrators provide an excellent source of oxygen for daily ambulatory oxygen therapy for COPD patients, freeing them from confinement and allowing them to move freely outdoors like normal individuals. The DEDAKJ RESPIREASY REA-7 portable oxygen concentrator maintains a stable oxygen concentration between 90% and 96%, with no loss of oxygen concentration due to flow rate fluctuations or over time. It offers seven pulse oxygen flow rates, allowing users to freely select the desired flow rate. This pulse oxygen technology maximizes oxygen utilization, with the highest flow rate being equivalent to a 7L desktop oxygen concentrator, fully meeting the needs of COPD patients for both indoor and outdoor oxygen therapy.

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② Consider continuous oxygen supply capacity: COPD patients receiving home oxygen therapy should ensure at least 15 hours of oxygen per day and a continuous oxygen supply for 500 days. Only oxygen concentrators that can continuously supply medical-grade high-concentration oxygen 24 hours a day, 365 days a year are effective in COPD treatment. Therefore, battery life and durability are important considerations when selecting an oxygen concentrator. The battery life should be sufficient for outdoor activities. The DEDAKJ RESPIREASY portable oxygen concentrator uses an 8-cell lithium battery, with a maximum battery life of 4.5 hours. For extended outings, a spare battery can be added, making battery replacement quick and easy, and even for the elderly.

③ Weight: Portable oxygen concentrators are primarily used outdoors, so they must be lightweight. The DEDAKJ RESPIREASY RES-6 portable oxygen concentrator weighs only 1.1 kg with the battery installed, making it lightweight and portable, and not burdensome even when carried for extended periods.

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④ Noise: Regarding the noise level of the oxygen concentrator, the "Safety Requirements for Medical Oxygen Concentrators" stipulates that under normal use, the maximum noise level of an oxygen concentrator should not exceed 60 dB. The "General Technical Specifications for Medical Molecular Sieve Oxygen Concentrators" stipulates that the noise level of oxygen concentrators should not exceed 85 dB.

03. Choose After-Sales Service

Many people tend to overlook after-sales service issues. For patients who require long-term oxygen therapy, frequent use of the oxygen concentrator, including maintenance and ongoing care, requires consistent after-sales support. DEDAKJ RESPIREASY offers professional after-sales service, including a two-year warranty on the main unit and a one-year warranty on the molecular sieve and battery. We also offer lifetime after-sales service. Any questions are answered with one-on-one guidance from our online staff, ensuring peace of mind.

04 Complete Qualifications for Greater Assurance

According to the "China Medical Device Product Classification Catalog," oxygen concentrators are currently classified as Class II medical devices in my country and require a "Medical Device Registration Certificate" issued by the National Medical Products Administration before they can be marketed. Manufacturers must obtain a "Medical Device Production License" issued by the drug administration, and distributors must possess a "Class II Medical Device Business Registration Certificate."

The market is full of mixed bag portable oxygen concentrators. When purchasing, be cautious and choose legitimate products with medical device registration certificates. Both offline and online distributors must possess "Class II Medical Device Business Registration Certificates." Comprehensive qualifications provide greater assurance.

We solemnly promise that all portable oxygen concentrators developed and manufactured by DEDAKJ RESPIREASY Medical Technology Co., Ltd. have received marketing authorization from the National Medical Products Administration. Finally, I would like to remind everyone again that while oxygen therapy is an important, relatively effective, and safe treatment for respiratory diseases, you should consult a professional doctor before purchasing an oxygen concentrator. You should accurately understand your desired duration and flow rate of oxygen inhalation and choose the appropriate model. Abuse is absolutely prohibited.

Before using a portable oxygen concentrator, be sure to carefully read the instructions and precautions in the manual. Only by following the instructions can you achieve optimal therapeutic results.