Caire Companion 5 ECO Oxygen Concentrator Bundle — 5 LPM
Caire Companion 5 ECO Oxygen Concentrator Bundle — 5 LPM
Caire Companion 5 ECO Oxygen Concentrator Bundle — 5 LPM
Caire Companion 5 ECO Oxygen Concentrator Bundle — 5 LPM

Caire Companion 5 ECO Oxygen Concentrator Bundle — 5 LPM

  • Smallest oxygen concentrator from Caire—smaller than other leading brands
  • Effective oxygen delivery—up to 95.5% concentration from 0.5 to 5.0 LPM
  • Simple user interface—easy to understand alerts
Our Price: $759.00

Caire Companion 5 ECO Oxygen Concentrator Bundle — 5 LPM
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Description

The Caire Companion 5 ECO Oxygen Concentrator Bundle is a proven, energy-efficient 5 LPM stationary home oxygen concentrator built around two technologies that set it apart in the category: CAIRE's autoFLOW™, which adjusts valve cycle timing based on flow rate to reduce compressor load by 25% at 2 LPM and cut power consumption to just 250W at that setting, and ultraSILENT™, which reduces noise to just 40 dBA at 2 LPM — one of the quietest home concentrators available. Both technologies work together to lower your energy bill, reduce wear on internal components, and extend the working life of the unit.

The ECO bundle includes the Companion 5 concentrator with OCSI oxygen monitoring — an alarm that activates if oxygen purity drops below 85%, providing an important safety alert for long-term users. The rotating flow control knob adjusts oxygen delivery from 0.5 to 5 LPM in 0.5 LPM increments. A large hour meter displays diagnostic alarm codes for easy troubleshooting. The humidifier bottle stand is integrated into the front panel for convenient setup. At 36 lbs with built-in casters and a top handle, the Companion 5 moves easily between rooms. Maintenance intervals are only required every two years. 3-year warranty.

5 LPM continuous flow · 36 lbs · 40 dBA at 2 LPM · 250W at 2 LPM / max 350W · autoFLOW + ultraSILENT · OCSI oxygen monitoring · 0.5–5 LPM in 0.5 increments · 3-year warranty. Prescription required before shipment.

Prescription Required A valid prescription from a licensed physician or respiratory therapist is required before this item can be shipped. Flow rate settings must be configured according to your physician's instructions. If you need assistance obtaining or submitting your prescription, call us at 866-218-0902 — we are happy to help coordinate with your provider. Mon–Fri 9AM–5PM · Sat 9AM–3PM.
Questions about the Companion 5 ECO? Call 866-218-0902 — Mon–Fri 9AM–5PM · Sat 9AM–3PM · Nationwide Shipping · Local SW Florida Support

autoFLOW. ultraSILENT. 40 dBA. Built for Long-Term Home Use.

autoFLOW Technology · 250W at 2 LPM · Lower Energy Bills CAIRE's autoFLOW technology adjusts valve cycle timing based on the current flow rate setting — reducing compressor load by 25% at 2 LPM, cutting power consumption to just 250W at that setting, and lowering the maximum draw to 300W at 3 LPM. This directly reduces daily electricity costs for patients running the concentrator continuously, while also lowering internal operating temperatures and reducing wear on compressor components. The result is a concentrator that costs less to run and lasts longer between service intervals.
ultraSILENT Technology · 40 dBA at 2 LPM · Bedroom-Friendly CAIRE's ultraSILENT technology combines a two-chamber intake muffler and a purge muffler to reduce both air intake noise and exhaust noise to just 40 dBA at 2 LPM — quieter than most home concentrators in the category. At this level the unit operates at roughly the volume of a quiet library or the background hum of a refrigerator, making it well suited for overnight use, bedroom placement, and noise-sensitive environments where a louder unit would be disruptive.
OCSI Oxygen Monitoring · LED Alarms · Large Hour Meter The ECO bundle includes OCSI (Oxygen Concentration Status Indicator) monitoring — an alarm system that alerts the user with both a visual LED indicator and an audible alarm if oxygen purity drops below 85%. The large front-panel hour meter displays diagnostic alarm codes for straightforward troubleshooting without calling for service. Additional LED indicators cover power status and operational alarms. The robust metal cannula barb provides a secure, durable connection to oxygen tubing. Intake filter is accessible through a side filter door and requires replacement only every two years.

Full Specifications

Model Caire Companion 5 ECO — 15067013
Flow Rate 0.5 to 5.0 LPM in 0.5 LPM increments
Oxygen Concentration 87% to 95.5%
Oxygen Monitoring OCSI — alarm activates below 85% purity
Noise Level 40 dBA at 2 LPM
Power Consumption 250W at 2 LPM · max 350W at 5 LPM
Weight 36 lbs (16.3 kg)
Dimensions 21.5"H x 12.5"W x 13.5"D
Operating Altitude -1,253 ft to 9,878 ft
Technology autoFLOW + ultraSILENT
Flow Control Rotating knob — front panel
Humidifier Integrated bottle stand — front panel
Casters Yes — built-in with top handle
Maintenance Interval Every 2 years
Warranty 3-year manufacturer's warranty
Prescription Required Yes — required before shipment
Compare All Home Oxygen Concentrators Not sure if the Companion 5 ECO is the right model for your prescription? Compare all home oxygen concentrators we carry — 5 LPM and 10 LPM models. Browse All Home Oxygen Concentrators →

Frequently Asked Questions

Both are CAIRE 5 LPM stationary home concentrators. The Companion 5 ECO is CAIRE's established model — well proven in home and clinical settings, with autoFLOW and ultraSILENT technologies, a 2-year maintenance interval, and OCSI oxygen monitoring included in the ECO bundle. The IntenOxy 5 is CAIRE's newest model — lighter at 34.2 lbs vs 36 lbs, with a slightly smaller footprint. Both carry a 3-year warranty. Call us to discuss which is right for your situation. 866-218-0902.
At 2 LPM — a common flow setting — the Companion 5 ECO consumes 250 watts. Running 24 hours at an average US electricity rate of approximately $0.16 per kWh, daily cost is roughly $0.96. At higher flow settings up to the maximum 350W, daily cost rises to approximately $1.34. Actual costs will vary based on your flow rate setting and local electricity rates. The autoFLOW technology meaningfully reduces consumption at lower settings compared to concentrators without this feature.
No — like all home stationary oxygen concentrators, the Companion 5 ECO requires a continuous AC power supply to operate. It is not battery-powered. If you experience power outages or need oxygen away from home, you should have a backup oxygen source — such as portable oxygen tanks or a portable oxygen concentrator. Call us if you need help selecting a backup or portable option. 866-218-0902.
The Companion 5 ECO is a stationary home concentrator designed for use with a standard AC wall outlet. It is not designed for travel, vehicle use, or use away from a power source. If you need oxygen therapy when away from home, a portable oxygen concentrator is the appropriate solution. Browse our portable oxygen concentrators →

Compare Home Oxygen Concentrators

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All Home Concentrators Full Home O2 Lineup Every home oxygen concentrator we carry — 5 LPM and 10 LPM
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Need Oxygen Away From Home Too?

The Companion 5 ECO is designed for stationary home use and requires a wall outlet. If you also need oxygen therapy during errands, appointments, or travel, a portable oxygen concentrator is the right complement. We carry a full range of battery-powered portable concentrators — including FAA-approved models for air travel.

Browse Portable Oxygen Concentrators →

Nationwide Shipping & Local SW Florida Support

Medical Department Store ships home oxygen concentrators nationwide to residential addresses and healthcare facilities across all 50 states. Local in-person support is available at all five of our Southwest Florida locations — Venice, Sarasota, Port Charlotte, Fort Myers, and Naples. Our respiratory specialists are available before and after purchase to answer questions, assist with prescription submission, and help you get the most from your equipment.

📞 866-218-0902 · Mon–Fri 9AM–5PM · Sat 9AM–3PM · Find your nearest location →


Technical Specs
Specifications
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