AirSep Visionaire vs. Respirionics EverFlo Q Concentrator Comparison

The AirSep Visionaire and the EverFlo Q by Respirionics are two of our best home oxygen concentrators, and they both have a lot in common. Both are relatively small and light when it comes to home oxygen concentrators, and whisper quiet.

If you're looking for a suitable home oxygen concentrator but you're not sure which one is right for you, we're going to compare these two side by side. Seeing the specifics together is usually helpful when you are looking for the best buy.

AirSep Visionaire

Most importantly, the Visionaire has continuous flow settings from 1 to 5 LPM, with a purity ranging from 87% to 95%. It only weighs 30 pounds and is only about the size of a small trash can, but much more attractive and sleek. This home concentrator is only 14 inches wide by 20 inches high by 11.5 inches deep, smaller than some other oxygen concentrators that can put out up to 5 LPM.

You won't be disturbed by this home concentrator, either. Many people complain about their home oxygen concentrator being too loud while they are trying to watch TV or have a conversation without the other person having to raise their voice. The Visionaire gets no louder than 40 decibels, which is whisper quiet.

The Visionaire is also one of the newer designs of home oxygen concentrators that are much more energy efficient than, the older ones that go up to 5 LPM. It only uses around 290 watts, which is half that of older, less energy efficient stationary oxygen concentrators. There are no filters on this home concentrator that need to be maintained or replaced.

Respirionics EverFlo Q

The difference between the continuous flow ranges between this and the Visionaire is the EverFlo Q starts at 0.5 LPM and goes up to 5. It also has a higher average oxygen purity, ranging from 90% to 96%. It only weighs 31 pounds and is a little taller and wider than the Visionaire, at 23 inches high, 15 inches wide and 9.5 inches deep. It's thinner than the Visionaire, which might work better for those who don't mind the height, and who want a concentrator that takes up less room horizontally.

The EverFlo Q is also very quiet and the same as the Visionaire in that area.

Sacrificing for more of a range in the oxygen flow department, the EverFlo ends up using more energy than the Visionaire, at an average of 350 watts. There are also two filters, but they usually last a long while before needing to be replaced. These two factors might be worth it, however, if you are getting a higher oxygen purity on average.

Side-by-Side Unit Comparison

14 Inches Wide x 20 Inches High x 11.5 Inches Deep
15 inches Wide x 9.5 inches Long x 23 inches High

30 pounds
31 pounds

Oxygen Settings
1 to 5 LPM
1 to 5 LPM

Oxygen Concentration
87% to 95%
87% to 93%

Power Consumption
290 Watts
350 watts

Noise Level
Around 40 decibels
Around 40 decibels

Maximum Oxygen Output
5000 ml/min
5000 ml/min

FAA Approved

3 Year Warranty on Unit
3 Year Warranty on Unit

Have more questions about for these units?

About Scott Ridl: Scott joined American Medical Sales and Rentals in 2008 as a Web Manager and Content Writer. He is a writer and designer. He is extensively trained on oxygen therapy products from leading manufacturers such as Inogen, Respironics, Chart, Invacare, ResMed and more. Scott works closely with respiratory therapists and oxygen specialists to educate the community about oxygen therapy products, COPD, asthma and lung diseases. He writes weekly columns and is passionate about educating the community on oxygen therapy and respiratory issues.

2 thoughts on “AirSep Visionaire vs. Respirionics EverFlo Q Concentrator Comparison”

  • Carlos

    Does altitude reduce oxygen purity? I live 2.600 m over sea lavel. At hospital I need 3 l/m, it will be the same with one of these at home?

    • Margaret Goodman
      Margaret Goodman April 13, 2018 at 6:32 am

      This is a great question, Carlos. If the machines service ceiling is lower than your altitude then yes the oxygen purity will be reduced. Based on what you have stated we would recommend that you go with the Visionaire 5 to meet your needs for both LPM and altitude.


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