CAIRE Companion 5 Home Oxygen Concentrator with O2 Monitor: A Complete Guide
A compact stationary concentrator built for dependable 24/7 home and institutional therapy — continuous flow from 0.5 to 5.0 LPM, ultraSILENT ~40 dBA operation, and a 2-year maintenance interval.
For standard continuous-flow oxygen prescriptions, low ongoing maintenance and quiet operation can matter as much as raw performance — especially for round-the-clock use. The CAIRE Companion 5 is built around that low-touch, dependable profile for long-term care facilities, home health setups, and clinical bed environments.
Delivering continuous-flow oxygen from 0.5 to 5.0 LPM at 90% (+5.5%/-3.0%) purity, the Companion 5 pairs CAIRE’s integrated OCSI purity monitor with autoFLOW energy-efficiency technology, keeping power draw under 300W at 3 LPM while operating at an ultraSILENT ~40 dBA.
Engineered by CAIRE Inc.
The Companion 5 is manufactured by CAIRE Inc. and backed by a 3-year limited warranty. As a Class II FDA-regulated medical device, it is available strictly by prescription.
CAIRE Companion 5
CAIRE Companion 5 Home Oxygen Concentrator
A compact, clinical-grade stationary oxygen concentrator delivering continuous flow from 0.5 to 5.0 LPM through standard wall outlet power. CAIRE’s integrated OCSI oxygen monitor continuously tracks output purity and triggers visual and audible alerts if concentration falls below 85%. autoFLOW technology keeps power consumption under 300W at 3 LPM, and the unit operates at an ultraSILENT ~40 dBA to minimize disruption during nighttime therapy. Features a front-access humidifier cradle and a comprehensive alarm system for power failure, high/low pressure, low purity, and temperature faults. Commercial-grade components require intake filter service only once every 2 years.
Complete Spec Sheet
| Specification | Detail |
|---|---|
| Brand / Manufacturer | CAIRE Inc. |
| Model | Companion 5 (with OCSI Oxygen Monitor) |
| Classification | Stationary Home Oxygen Concentrator |
| FDA Status | Class II Medical Device — Prescription (Rx) Required |
| Flow Range | 0.5–5.0 LPM Continuous Flow |
| Oxygen Concentration | 90% (+5.5% / -3.0%) at all flow rates |
| Purity Monitor | Integrated OCSI — alarms below 85% purity |
| Sound Level | ~40 dBA at 2 LPM |
| Power | 120 VAC / 60 Hz (~285W avg @ 3 LPM; 350W max) |
| Max Tubing Run | 50 feet (15.2 meters) |
| Dimensions | 21.5"H x 12.5"W x 13.5"D |
| Weight | ~36 lbs (16.3 kg) |
| Service / Warranty | 2-Year Filter Maintenance | 3-Year Limited Warranty |
Clinical Selection Note: Equipment must be selected according to prescribed flow rate and delivery requirements. Always cross-reference device capabilities with your physician’s prescription.
Who Is the CAIRE Companion 5 Typically Prescribed For?
The Companion 5 is well suited to standard continuous-flow oxygen prescriptions in long-term care facilities, home health setups, and clinical bed environments running equipment 24/7. Its ultraSILENT operation makes it a strong fit for overnight resident care, while the extended 2-year maintenance interval benefits institutional fleets looking to reduce staff service touchpoints. As with any oxygen device, the appropriate flow rate should be determined by your physician based on your specific prescription.
Adding the CAIRE Companion 5 to the EnhDme-Pro catalog gives facilities a low-maintenance, ultra-quiet option for dependable standard-flow bed placements.
Frequently Asked Questions
How does the built-in OCSI oxygen monitor enhance patient safety?
The OCSI monitor continuously measures output purity in real time. If oxygen concentration drops below 85%, the system immediately triggers visual and audible alerts, giving clinical staff immediate verification without manual spot-check meters.
What routine maintenance is required for the CAIRE Companion 5?
The Companion 5 features a low-maintenance design that only requires gross particle filter cleaning and air intake filter replacement every 2 years, reducing fleet maintenance downtime.
What prescription documentation is required prior to shipping?
Per FDA Class II medical device regulations, orders for the CAIRE Companion 5 require a valid prescription or medical license verification prior to order release.
Kevin Lambing, CDME
Kevin Lambing, CDME is the CEO and founder of EnhDme-Pro (enhdme-pro.com). As a Certified Durable Medical Equipment Specialist with over two decades of experience in clinical respiratory distribution, Kevin leads EnhDme-Pro in providing high-grade medical equipment and technical education to healthcare providers and clinical institutions nationwide.