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How to Use React Health Oxygen (Formerly Invacare) Concentrator

Are you someone who has never used an oxygen concentrator before and needs to start using our React Health (formerly Invacare) Platinum 20 Home Oxygen Concentrator? If so, it is only normal that you may be feeling apprehensive and anxious about figuring out how to use a oxygen concentrator.

Luckily, there’s no need to fret. Most oxygen concentrators are designed to be user-friendly, and straightforward to understand. There is no exception when it comes to our React Health Platinum 20 Home Oxygen Concentrator.

This oxygen concentrator, in particular, has a very simple design and is super easy to use, so you will get the hang of it in no time. 

To help with this, though, we have put together a very useful guide on how to use our React Health oxygen concentrator. After going through it, you will feel fully equipped to use it, and won’t have to worry about not knowing how it works.

How to Use React Health Oxygen Concentrator

Ensure That You Understand Your Machine 

Before you start exploring how to use a oxygen concentrator, it’s important that you understand the function of your oxygen concentrator. This machine is crucial for patients who need to understand their oxygen machine levels.

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This oxygen concentrator is designed to be used indoors and for individual use. It operates electronically through a power supply, separating oxygen from “normal” air. 

Since this is designed for home use, this oxygen concentrator can portable oxygen concentrators be used 24/7 as long as you make sure that it is connected to a power supply.

Choose Where You Would Like To Use Your Oxygen Concentrator 

Before starting with the setup of your React Health Oxygen Concentrator, you should choose a location where you would like it to operate. 

While this oxygen concentrator can be easily moved from one room to another thanks to its handy wheels, we would recommend choosing a set place for it to reside. 

The reason for this is that it needs to be placed on a level surface in order to operate efficiently. It also needs to be close to a power supply and be positioned in a well-ventilated space to ensure that the air openings are never obstructed. 

Our research indicates that your React Health Oxygen Concentrator should be placed 30.5 cm away from any furniture or walls. 

It is also very important that you never move this oxygen concentrator while it is in use. 

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Set Up Your React Health Oxygen Concentrator 

Connect Your Humidifier

You don’t always need a humidifier with an oxygen concentrator, but drawing from our experience, we know that they’re often used together. This is because oxygen is dry, and frequent, prolonged, use can cause your throat and nasal passages to dry out.

So, if a humidifier has been prescribed to you, you will need to understand how to attach the humidifier to your oxygen concentrator.

The first thing that you’ll need to do is remove the cap of the humidifier bottle and fill it with distilled water for your oxygen concentrator. Can you use tap water in oxygen concentrator? You could also use tap water, but you would need to boil it and allow it to cool beforehand.

After that, attach it to the designated spot on your oxygen concentrator as per the user manual. 

Connect Your Nasal Cannula 

Start by removing the cannula from its packaging. Place the tubing over your ears, and the prongs in your nose. 

Connect the nasal cannula to your oxygen concentrator. If you’re using a humidifier bottle, you’ll need to attach the other end of the nasal cannula to the outlet of the humidifier bottle.

If you are not using a humidifier bottle, connect the nasal cannula to the oxygen outlet connector that can be found on your oxygen concentrator. 

Since the chronic use of oxygen can cause dryness and irritation to your throat and mouth, the chances that you will end up using a humidifier with your React Health Oxygen Concentrator is fairly high though. So it’s likely that the nasal cannula will need to be connected to the humidifier bottle. 

One thing that you need to check thoroughly is that there are no kinks in your nasal cannula. Any kinks, even small, will impact how much oxygen is delivered to you. This could be detrimental, as it could largely restrict the oxygen you are getting.

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Turn Your Machine On 

Once all of this has been set up, it is time to turn on your React Health oxygen concentrator. 

Firstly, make sure that your oxygen concentrator is plugged into the power supply at the wall. Turn this power supply on before you turn the machine on. 

You will see a large power switch on the right of your oxygen concentrator’s face. Turn this on, and wait to hear an audible alarm that will last one second. This will indicate that your oxygen concentrator is on and has powered up correctly. 

Adjust Your Oxygen Flow Rate 

Once your machine is on, you need to adjust the oxygen concentrator settings to the flow rate that has been prescribed to you by your healthcare professional.

On your React Health oxygen concentrator, there will be a knob on the left side of the machine’s face. This is where you can adjust the oxygen flow rate quickly and efficiently. 

When you set the oxygen level on your concentrator, it’s imperative that you use the exact oxygen dosage that was prescribed to you by your healthcare professional.

Through our knowledge, we know that using the incorrect dosage, be it more or less, can be harmful to your health, and we do not recommend it at all. 

If your React Health Oxygen Concnetrator’s flow rate falls below 0.5 liters per minute for longer than a minute an alert called “Potential Obstruction Alert” will be triggered. This will make a rapid beeping noise that will only stop when the flow rate rises to between 0.5 and 0.75 liters per minute or higher. 

If this alarm sounds, make sure that there are no kinks in your nasal cannula, and ensure that the humidifier is not defective. 

A flow rate of below 0.5 liters per minute can be very dangerous, so this is a very smart response from the machine to ensure that your well-being is looked after and that your oxygen flow rate is never compromised. 

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SensO2 Oxygen Purity Indicators

Our React Health oxygen concentrator is equipped with SensO2 oxygen purity indicators that monitor the purity of the oxygen produced by the oxygen concentrator.

If the oxygen purity happens to fall under factory preset standards, then a variety of different lights will illuminate on the control panel, depending on what the percentage purity is. 

We would suggest that you familiarize yourself with what the different color lights mean in order to be able to use this oxygen concentrator correctly and understand what to do if one of these lights ever starts flashing. 

The different color lights, and what they mean, can be found in the user manual that comes with our React Health oxygen concentrator. 


In conclusion, using an Invacare Oxygen Concentrator, now React Health Oxygen Concentrator, is a straightforward process that requires careful setup, proper operation, and regular maintenance. By understanding the basics of the device, setting it up correctly, and following the recommended procedures, you can ensure a smooth and reliable experience with your oxygen therapy.

Did you find the blog beneficial? If so, consider exploring our other guides.