2025 Stationary & Home Oxygen Concentrator Buying Guide

At DirectHomeMedical, we understand that choosing the right Stationary Oxygen Concentrator can feel overwhelming, so we’ve created a simple, easy-to-follow Buying Guide and Comparison Chart to help you make the best choice for your needs. Whether you’re searching for a compact, quiet unit for everyday use or a high-flow concentrator for advanced oxygen therapy, our guide highlights all the key features--flow rate, noise level, power efficiency, weight, and more--so you can confidently compare top-rated models side by side. With our expert insights and detailed comparisons, finding your ideal home oxygen solution is just a few clicks away.

What is a Stationary Oxygen Concentrator?
Stationary Oxygen Concentrators are medical-grade devices designed to deliver continuous oxygen therapy in the home. Unlike portable models, stationary units are plug-in systems that provide steady, high-volume oxygen output for patients who require around-the-clock support. They draw in room air, filter out nitrogen, and deliver purified oxygen through tubing connected to a nasal cannula or mask--all without the need for refills or tanks.

Stationary concentrators are ideal for users who spend most of their time at home, need higher oxygen flow rates, or prefer a consistent and maintenance-friendly setup.

Oxygen Flow Rate & Delivery
When selecting a stationary oxygen concentrator, one of the most important factors to consider is flow rate--measured in liters per minute (LPM). Most home concentrators provide up to 5 LPM, which meets the needs of most oxygen users, while high flow models can deliver up to 10 LPM for patients with greater oxygen requirements.

All stationary concentrators provide continuous flow oxygen, ensuring a steady, reliable stream that supports nighttime use, sleep therapy, and respiratory conditions that demand constant delivery. Your doctor’s prescription will indicate the specific flow rate you need.

Power Efficiency & Operation
Because stationary concentrators run continuously, energy efficiency and durability are key considerations. Modern models are engineered to operate quietly and use less power than older generations. Most include built-in alarms for low oxygen purity, power failure, or flow blockages--providing peace of mind for patients and caregivers alike.

Weight, Size & Placement
While portable concentrators are built for travel, stationary concentrators are designed for reliability and long-term performance. Most units weigh between 30–50 pounds, and come equipped with rolling casters and handles for easy movement between rooms. When choosing your model, consider where you’ll primarily use it--such as the bedroom or living area--and ensure the space has good ventilation and access to power.

phoenix oxygen concentrator
Phoenix 5
compact 525ds
Compact 525DS
oxyhome oxygen concentrator
OxyHome
intenoxy concentrator
IntenOxy 5
inogen at home
Inogen At Home
drive 1025ds
1025DS
invacare platinum 10lpm
Platinum 10
Intensity 10
Intensity 10
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$649
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$749
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$795
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$799
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$1795
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$1399
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$1624
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$1995
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DIMENSIONS & WEIGHT
35 Lbs 34 Lbs 42 Lbs 36 Lbs 18 Lbs 42 Lbs 54 Lbs 58 Lbs
20 x 14 x 11 In 20 x 15 x 10 In 25 x 13 x 12 In 22 x 13 x 14 In 17 x 13 x 7 In 25 x 14 x 12 In 27 x 19 x 15 In 28 x 16 x 15 In
OPERATING SOUND LEVELS
≤ 50 dBA ≤ 48 dBA ≤ 45 dBA ≤ 45 dBA ≤ 45 dBA ≤ 59 dBA ≤ 58 dBA ≤ 58 dBA
CONTINUOUS FLOW OXYGEN DELIVERY (LPM)
1-5 LPM 1-5 LPM 1-5 LPM 1-5 LPM 1-5 LPM 1-10 LPM 1-10 LPM 1-10 LPM
USER REPLACEABLE FILTERS & SIEVE BEDS
User Replaceable Filters
Reusable Reusable Reusable Reusable Reusable Reusable Reusable Reusable
User Replaceable Sieve Beds (Also Known as Cartridges or Column Pairs)
No No No No Yes No No No
COMPATIBLE THERAPY APP
- - - MyCaire Inogen Connect - - -
FAA APPROVED FOR USE ON FLIGHTS
Stationary concentrators are not approved for use on flights; however they can be placed in checked baggage.
Check out a Portable POC for in flight use.
CPAP COMPATIBILITY
Yes Yes Yes Yes Yes Yes Yes Yes
BATTERY POWER OPTIONS
No No No No No No No No
WALL (AC) POWER
120v AC (USA) 120v AC (USA) 120v AC (USA) 120v AC (USA) Universal AC 120v AC (USA) 120v AC (USA) 120v AC (USA)
MOBILE (DC) POWER OPTIONS
No No No No No No No No
CONCENTRATOR WARRANTY
3 Years 3 Years 3 Years 3 Years 3 Years 3 Years 3 Years 3 Years
MANUFACTURING DETAILS
React
Made in the China
Drive DeVilbiss
Made in the USA
OxyGo
Made in China
Drive DeVilbiss
Made in the USA
Inogen
Made in the USA
Drive DeVilbiss
Made in the USA
Invacare
Made in the USA
Caire AirSep
Made in the USA

NOTES: Dimensions and weight are approximations. Typical sound levels for portable oxygen concentrators are measured at a setting of 2. Typical sound levels for home oxygen concentrators are measured at the highest liter flow. Typical sound levels for sleep therapy devices are measured at average therapy settings with an overall accuracy of +/- 2dBA. In all cases an adapter or special tubing is required when using CPAP with an oxygen concentrator. FAA Approval indicated for use on all Commercial Flights departing from or arriving in the US. Contact your airline for any specific requirements. Review manufacturer's specifications and documentation for additional information on product specifications and features.