CAIRE Companion 5 Eco Oxygen Concentrator

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The CAIRE Companion 5 Eco oxygen concentrator is one of the most powerful machines in oxygen delivery. It has a continuous flow of up to 5 liters per minute. Not only is it powerful, but it is also efficient and helps reduce power draw.

Companion Eco oxygen concentrator has an oxygen concentration of 87 to 95.5%. It can even operate at an altitude of 1,253 feet below sea level, which is excellent for those living in mountains and higher land areas. As a stationary oxygen concentrator, the Companion Eco CAIRE is not FAA Approved because it requires a power source. 

CAIRE's Companion Eco oxygen machine is functional and convenient. It utilizes an LCD screen where you can read hour-meter displays. This hour meter displays diagnostic alarm codes to notify you of whatever your device requires.

Additionally, it only consumes around 240 watts at 2 liters per minute. It provides a quiet operation and simple user experience at a sound level of only 50 decibels.

CAIRE values the satisfaction of its users, and it is visible in the functionality of the CAIRE Companion oxygen concentrator. It has LED lights and alarms for specific scenarios.

This machine has a filter door at its side, so the intake filter is easily replaceable and would not require additional equipment to handle.

CAIRE Companion 5 Eco Components

  • Outer case
  • Power switch
  • Outlet barb
  • Large and easy-to-read LED display
  • Hour meter
  • Flow meter
  • Humidifier bottle support stand
  • Nasal cannula
  • AC power cord
  • The filter is easily accessible through the filter door

CAIRE Companion 5 Eco Features & Benefits

  • Continuous flow
  • Low noise output
  • Low power consumption
  • Accessible humidifier bottle
  • Easy-to-read display
  • Durable
  • Performance is optimized by autoflow technology
  • High-capacity compressor
  • Consistent purity at all flow rates
  • Ultra-silent technology
  • Long maintenance intervals
  • Sturdy roller base
  • Compact size
  • Decreases wear on all components

CAIRE Companion 5 Eco Size

  • Width: 12.5 inches
  • Height: 21.5 inches
  • Depth: 13.5 inches
  • Dimension: 21.5H x 12.5W x 13.5D in
  • Concentrator Weight: 36 lbs (16.3 kg)

CAIRE Companion 5 Eco Performance

  • Maximum Flow Minute Volume: 0.5–5.0 LPM ± 10% of selected setting or 200 mL  
  • Oxygen Concentration: 90% (+5.5%/-3%)
  • Maximum Outlet Pressure: 6 psi
  • Inspiratory Trigger Sensitivity: N/A
  • Pulse Flow Settings: N/A

CAIRE Companion 5 Eco Operating Conditions

  • Noise Level: 50 dB(A) at setting 2
  • AC Input: 285 W @ 2 LPM, 350 W Maximum
  • AC Output: N/A
  • DC Input: N/A
  • DC Output: N/A
  • Battery: N/A
  • Battery Duration: N/A
  • Battery Recharge Time: N/A
  • Humidity: 15% - 90% at an 82.4° F (28° C) dew point
  • FAA-Approved: No
  • Altitude: -1253–9879 feet (-382–3011 meters)

CAIRE Companion 5 Eco Accessories

  • Bubble humidifier bottle
  • Humidifier adapter 

Caire Companion 5 Eco Specifications Table




36 lbs (16.3 kg)


21.5H x 12.5W x 13.5D in

Oxygen Concentration

90% (+5.5/-3%)

Flow Settings

Continuous flow: 0.5 to 5.0 LPM

Sound Level

50 dB(A) at setting 2


AC Power: 285 W @ 2 LPM, 350 W


DC Power: N/A

Battery Duration


Charge Time


Operating Conditions

Temperature: 41ºF to 104ºF (5°C to 40°C)

Humidity: 15% - 90% at an 82.4° F (28° C) dew point

Altitude: -1253–9879 feet (-382–3011 meters)


  • Bubble humidifier bottle
  • Humidifier adapter


3 years

CAIRE Companion 5 Eco Resources

Buy CAIRE Companion 5 Eco At Sprylyfe

Are you ready to get your very own CAIRE Companion oxygen concentrator? Get it today at Sprylyfe! We have excellent deals that you can use to save money and more.

If you are unsure about this machine, you can always call us at 1-800-314-8225, and our product specialists and responsive customer support will help you find the one that best suits your oxygen needs.

Here at Sprylyfe, we offer free shipping deals, flexible payment plans, and a money-back guarantee to our customers. Purchase the CAIRE Companion 5 Eco today! This device uses a operation simple user interface and easy to read hour meter. If you want a high-quality oxygen concentrator, this is for you.

CAIRE Companion 5 Eco Frequently Asked Questions

How big is the CAIRE Companion 5 Eco?

The CAIRE Companion 5 Eco has a dimension of 21.5H x 12.5W x 13.5D in. As a stationary oxygen concentrator, it is more on the heavier side. Still, it is easy to transport anywhere at 36 pounds but don't expect it to be as easy as portable oxygen concentrators.

Is the CAIRE Companion 5 Eco approved by the FAA?

No. The CAIRE Companion 5 Eco is not approved for travel by the FAA. This is due to its larger size. You can also use this only when connected to a power outlet. This is not a portable oxygen concentrator, so it is not recommended for traveling and being brought to different places. It also has a lower operating altitude, and the device may fail during the flight even if you use it with an outlet.

What is the oxygen output of Companion 5 Eco?

The oxygen output of the CAIRE Companion Eco is at 90%. That is more than good for your oxygen therapy. It can cater to people with mild to severe breathing problems like lung cancer, COVID-19, COPD, sleep apnea, and more. The continuous flow also helps provide an uninterrupted supply of purified oxygen at a flow rate of up to 5 liters per minute. 

Can the CAIRE Companion 5 Eco Be Used 24/7?

Yes. The CAIRE Companion 5 Eco can be safely used for more than 24 hours consistently. This is because it runs on AC power and does not require refilling. It collects the air from the room and purifies up to 90% of oxygen by filtering other gases like nitrogen, carbon dioxide, and more. It also produces only 50 decibels, which is not that loud and disruptive even on a silent night.

How much energy does the CAIRE Companion 5 Eco Use?

The power consumption of the CAIRE Companion 5 Eco is 300W at a setting of 3 liters per minute. This is much lower than an average stationary oxygen concentrator's consumption, 480W. If you use a lower flow rate, you can also expect a lesser energy consumption. Using this machine daily will not cause a significant increase in your monthly electricity bill. 

How long is the warranty of CAIRE Companion 5 Eco?

The CAIRE Companion 5 home oxygen concentrator's warranty lasts three years. However, they also have extended warranty options if you want to ensure your machine's longer lifespan. When it comes to the components, they have a one-year warranty for them. For more info, contact us so we can discuss more regarding this product.

How can I move Companion 5 Eco from room to room?

The CAIRE Companion 5 Eco oxygen concentrator has a built-in wheel on its base, so you can quickly bring it around the house. This compact stationary oxygen concentrator is also specially designed to pass through narrow doorways and arches wherever you go.

To move it, unplug it from the power source first and turn off the machine. Upon reaching the other room, set it far enough from the wall and plug it in before turning it on again. 

Can I use the CAIRE Companion 5 Eco at night?

Yes. It is safe to use the CAIRE Companion 5 Eco at night while you are sleeping. It produces a constant amount of oxygen depending on the flow rate you set. Unlike oxygen tanks, it also does not require refilling, so you can peacefully sleep without worrying about anything.

The CAIRE Companion 5 Eco is made to have a quiet operation, making it an excellent home oxygen concentrator. 

Can I use CPAP/BiPAP with the CAIRE Companion 5 Eco?

Yes. The CAIRE Companion 5 Eco is compatible with BiPAP machines, CPAP machines, and humidifier bottles. You can use the device 24/7 while connected to a power source. It also utilizes continuous flow, which is perfect for people who require constant oxygen for most of the day. It is durable and reliable for oxygen therapy. 

Is the CAIRE Companion 5 Eco covered by insurance?

Most insurance covers the rental of oxygen concentrators. The kind of insurance you have may also factor in how much is included in the coverage. It would be better if you contact your insurance provider regarding this issue to see if you can apply for the coverage of the CAIRE Companion 5 Eco oxygen concentrator. 

Do you sell a pre-owned and refurbished CAIRE Companion 5 Eco home oxygen concentrator?

Yes! We sell pre-owned and refurbished CAIRE Companion 5 Eco and other brands of oxygen concentrators here at Sprylyfe. They are just as practical and functional as brand-new oxygen concentrators but at a much lower price. Don't worry about the quality of these machines because we ensure that they are still good and can last you for a long time.

If you are curious, call us at 1-800-314-8225. We are willing to help you find the oxygen concentrator you are looking for.

How does financing with Sprylyfe work?

Here at Sprylyfe, we have a financing return and exchange policy for our customers. We value your satisfaction with our services and products, so call 1-800-314-8225 if you have any problems with your received items.

We constantly check our outgoing products before shipping, but certain damages are sometimes inevitable. Please note that we do not cover mishandling during shipping; you can only utilize this policy within 30 days of receiving the product.

Any damage acquired after that period will no longer be eligible for return and refund. If you have any questions, contact us.

If you are in need of a more detailed explanation of the specifications of the Companion 5 Oxygen Concentrator, don’t hesitate to contact us at any time. You can do that by giving us a call at 1-800-314-8225 or emailing us at