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Caire Companion 5 Oxygen Concentrator with Oxygen Monitor
Customers rate us 4.7/5 based on 1120 reviews.

Caire Companion 5 Oxygen Concentrator with Oxygen Monitor

by Caire
$995.00 - $995.00
$995.00
$995.00 - $995.00
$995.00
In stock and ready to ship
Your Oxygen Expert
Questions? Talk to the Oxygen Experts!
Use your funds before year-end

Reliable continuous-flow oxygen therapy with up to 5 LPM output, quiet operation, and an integrated oxygen monitor — the Caire Companion 5 makes home oxygen simple, steady, and safe.

Is Vital Care USA an authorized retailer?

Yes — 100% authorized. Vital Care USA only partners with fully authorized U.S. manufacturers and distributors. Every unit includes the full factory warranty and authentic U.S. serial numbers. Your purchase is always protected.

Are the oxygen concentrators brand new?

Every concentrator we ship is brand new in original factory-sealed packaging unless clearly stated otherwise. All standard accessories, manuals, and warranties are included.

You can also review our easy, customer-friendly return policy if you have questions about unopened items or eligibility.

Do I need a prescription to order?

Yes — U.S. law requires a valid prescription for most home and portable oxygen concentrators. After checkout, your doctor can fax or email it to us, or you can upload it directly.

You can also email your prescription directly to us at support@vitalcareusa.com.

Once we receive it, your order ships right away.

Vital Care USA is not a medical provider and cannot provide medical advice. We do not determine oxygen flow settings or therapy levels. Always consult your licensed healthcare provider before selecting a unit or changing your prescribed oxygen settings.

Does insurance or Medicare cover this?

Most online oxygen concentrator purchases are not covered by Medicare or private insurance when bought outright. This is because coverage is usually tied to local in-network rental programs.

Many customers still choose to buy privately because it gives them:

  • Full ownership of their device
  • No rental restrictions
  • Freedom to travel, fly, or stay active without paperwork
When will my order ship?

Most in-stock oxygen concentrators ship within 1–2 business days after we receive your prescription and verify the order. Tracking is sent automatically by email.

We also offer next-day delivery options on select models and locations — contact us if you need fast delivery.

For full details on shipping methods, transit times, and signature requirements, please review our Shipping Policy .

Need to review returns or refunds? See our Return & Refund Policy .

What if I’m not sure which concentrator is right for me?

Whether you need long battery life, higher pulse settings, or continuous-flow support, our team can help match the right device to your prescription and lifestyle.

Speak directly with an oxygen specialist at (712) 435-1306 — we’ll walk you through your options with zero pressure.

Want help choosing?
Talk to a U.S.-based oxygen specialist now and get matched to the right device for your needs.
Call (712) 435-1306

Why Choose Vital Care USA?

Best Price Guarantee

We guarantee the best price on all of our portable oxygen concentrators.

BBB A+ Accredited

We have an A+ rating from the Better Business Bureau with happy customers all over the world!
Vital Care USA is an Authorized Dealer -every unit is new, factory-sealed, and fully warrantied. Unauthorized sellers risk used, refurbished, or counterfeit devices with no protection.

Free Next Day Shipping

All portable oxygen systems are delivered for free the next day (other items are still shipped with FedEx, just not overnight).

Continuous Flow Oxygen Therapy

Designed for reliable home use, the CAIRE Companion 5 delivers adjustable continuous flow settings from 0.5 to 5.0 LPM, supporting a wide range of prescribed oxygen needs with steady, uninterrupted output.

Integrated Oxygen Monitor

Built-in oxygen purity monitoring continuously checks concentration levels and provides alerts for added safety and confidence.

Home-Focused Design

Compact footprint and quiet operation designed for comfortable, stationary use in bedrooms and living spaces.

Durable, Dependable Perfonce

Engineered for consistent, long-term oxygen delivery with minimal maintenance requirements.

Reliability You Can Call Home

Reliability You Can Call Home

Don't let your oxygen therapy be a chore. The CAIRE® Companion 5™ is the ultimate stationary concentrator—delivering a constant, high-capacity flow without the noise. It’s quiet, steady, and so reliable you’ll forget it’s even in the room. Just pure, continuous oxygen designed for your comfort.

Stress-Free Oxygen at Your Fingertips

Stress-Free Oxygen at Your Fingertips

We’ve stripped away the complexity. With an easy-to-read flow meter and a rugged metal outlet, the Companion 5™ is built for daily life. The integrated Oxygen Monitor acts as your personal safety guard, constantly checking purity levels so you can enjoy total peace of mind 24/7.

Powering Your Health, Not Your Bill

Powering Your Health, Not Your Bill

The Companion 5™ is as kind to your wallet as it is to your lungs. Featuring autoFLOW™ Technology, it "thinks" while it works, adjusting its power use to match your flow. The result? Less heat, less wear, and lower electricity bills—making it one of the most efficient units ever made.

Freedom in Every Room

Freedom in Every Room

Who says stationary has to mean stuck? With its slim profile and smooth-rolling wheels, the Companion 5™ glides across carpet and hardwood alike. It’s designed to fit into your home—and your life—perfectly, requiring almost zero maintenance for years at a time.

Price Match Guarantee

Find a Lower Price on Any Oxygen Concentrator? We Match It.

We work directly with authorized brands to offer the most competitive pricing. If you find a lower authorized price anywhere, we’ll match it — and you can call us for exclusive phone-only offers.

📞 Call Now for Our Best Price

Real, authorized pricing. No hidden fees. No surprises.

Getting Started with CAIRE® Companion 5™

What's in the box?

Caire Companion 5 unit (15067013)

Caire Companion 5 unit (15067013)

Cannula (C-7)

Cannula (C-7)

User’s Manual

User’s Manual

Dimensions
12.5 inches Wide x 21.5 inches High x 13.5 inches Deep
Product Weight
36 pounds
Alarms / Alerts
Power Failure, General Unit Malfunction, Flow Rate Error
Flow Settings
0.5 to 5.0 LPM
Noise Level
50 decibels at 2 liter per minute on continuous flow
Outlet Pressure
4.6 PSIG nominal
Power
120 Volts, 60 Hz (Hertz)
Oxygen Purity
85% to 95%; Continuous Flow Accuracy: +/- 10% or 200ml/min, whichever is greater
Oxygen Concentrator
3 Years

Frequently Asked Questions

What flow settings are available?
You can set continuous oxygen flow anywhere between 0.5 to 5.0 LPM, adjusted to match your doctor’s prescription.
What maintenance does it require?
Routine user maintenance is minimal. Filters are typically accessible for cleaning or replacement, and professional service intervals are usually several years apart (often every 2 years).
Do I need a doctor’s prescription to purchase this unit?
Yes — a prescription from a licensed physician is required to purchase the Companion 5, even if supplied directly.
How does the oxygen concentrator work?
The Companion 5 takes in room air and uses internal filters and a molecular sieve system to remove nitrogen, delivering concentrated oxygen (typically 87%–95% oxygen content) through tubing and a cannula to the user.
What does “with Oxygen Monitor” mean?
A version of the Companion 5 can include an oxygen monitor alarm, which alerts you if the oxygen concentration drops below a safe threshold (typically below about 85% purity). This helps ensure oxygen quality is maintained during use.
Call 712-435-1306 Live Chat Talk to an Oxygen Specialist: 712-435-1306

Check Our Trustpilot Reviews

Real feedback from our customers. If you need any help, our team is here.

★★★★★
Verified review
Great service
“I spoke with Kay. She was very professional and answered all my questions. My unit shipped and arrived as she said it would.”
Susan S.•2 days ago
★★★★★
Verified review
Very helpful!
“Very helpful! My mind was at ease knowing the purchase process was going smoothly. Quick delivery was helpful.”
James N.•6 days ago
★★★★★
Verified review
Process was easy
“Process was easy, the rep helped me a lot, got the order from the Dr and it shipped the next day.”
Michael H.•Dec 30, 2025
★★★★★
Verified review
Great Service and Pricing
“An excellent company to do business with. Fast free shipping!! Black Friday deal was too good to pass up.”
Doug•Dec 9, 2025
Read more reviews • Need help? Contact our team anytime.

Let customers speak for us

from 1120 reviews
Kenneth Keim
Inogen® Rove 6 Portable Oxygen Concentrator
Love my new Rove 6

Love my new Rove 6. Gives me twice the amount of time than my Rove 4. Very satisfied.

Eleanor H.
Vital Care USA
Great for everyday use

I’ve been using my Rove 6 daily for six months now and it still feels brand-new. I take it grocery shopping, to church, and even on short flights. It’s light, quiet and gives me a sense of freedom I haven’t had in years.

Roger D.
Vital Care USA
Perfect for musicals

We took our Rove 6 to a theater show last week and it ran quietly throughout the performance. Small enough to keep at our feet.

Pat L.
Vital Care USA
Better than expected

The unit charges faster than advertised and feels solid. I can see why Vital Care gets such good reviews.

Thomas A.
Vital Care USA
Reliable through travel

I flew to Denver with the Rove 4 and it never skipped a beat. Even at altitude it delivered steady oxygen flow.

George T.
Vital Care USA
Made our Europe trip possible

We toured Spain for two weeks and the Rove 6 handled train rides and flights perfectly. Local outlets worked fine with our converter.

Gerald M.
Vital Care USA
Excellent long-term performance

We’ve had our Rove 4 for almost a year now and it’s still running like the day it arrived. My husband uses it for daily walks around the neighborhood and recharges it every night. Filters are easy to replace, and Vital Care always ships extras fast.

Patricia J.
Vital Care USA
Incredible machine

Took the Rove 6 to our daughter’s wedding in Hawaii and it kept me comfortable through the entire day. Battery swaps were quick and easy.

Thomas P.
Vital Care USA
Perfect for concerts and dinners

I took my Rove 6 to a musical downtown and it handled the entire show on a single charge. It’s a bit audible in silence but totally fine in public venues.

Howard G.
Vital Care USA
Travelled through Europe flawlessly

Used the Rove 6 across Italy and France for two weeks. Airline staff were very familiar with it and we never had trouble charging.

James P.
Vital Care USA
Couldn’t be happier

This concentrator has restored my confidence to travel and socialize again.

Joanne P.
Vital Care USA
Exceptional comfort

I forget I’m even using it most of the time. The airflow feels natural and smooth.

Helen M.
Vital Care USA
Feels reliable

After months of use I can say this concentrator has zero surprises—no odd alarms, no battery issues. It simply does its job.

Protect Your Investment

Inside most concentrators there are sieve beds (also called columns) containing a mineral called zeolite, which is responsible for producing medical-grade oxygen. With normal use, these components are exposed to air, moisture, and environmental particles, which can affect performance over time.

Many patients also review or replace output and particle filters as part of ongoing device care to help maintain airflow and oxygen purity. Because usage and environments vary, service needs are addressed based on device performance rather than fixed schedules.

5-Year Worry Free Coverage

5-Year Worry Free Coverage

$650.00

What’s Included

  • Coverage extended to 5 total years from the original purchase date
  • Support for service and maintenance not typically covered under the factory warranty
  • Coverage for columns and filters when replacement is required due to performance or operational concerns
  • Assistance with troubleshooting, alerts, and changes in operation
  • Access to software updates when applicable
  • Priority support and expedited service coordination
  • Replacement unit provided when required following troubleshooting confirmation
Lifetime Worry-Free Coverage

Lifetime Worry-Free Coverage

$950.00

What’s Included

  • Coverage for the usable life of the device
  • Continued protection beyond standard and extended warranty periods
  • Coverage for columns and filters when service is needed to maintain proper operation
  • Replacement unit provided in the event of a covered device failure
  • Priority support for the life of your coverage
  • Assistance with troubleshooting, alerts, and performance concerns
Companion 5 User Manual (15062781) ENG Companion 5 Cutsheet (ML-CONC0142) ENG