SAVE 5% on Most Orders over $25! Use Code: SAVE5 - Exclusions Apply

High Flow Oxygen Concentrator Review Featuring Side-by-Side Comparison Chart

Review Home Oxygen Concentrators with High Oxygen Flow

High Flow Oxygen Concentrators, for the purposes of this review, are designed to provide continuous oxygen flow from 6 to 10 liters per minute (LPM). These oxygen machines are significantly larger than the 5 Liter Oxygen Machines and often produce twice the amount of concentrated oxygen. Oxygen patients requiring high flow oxygen for home therapy, require high flow nasal cannula and high flow oxygen tubing that can accommodate 6 to 15 liters per minute. Often, high flow oxygen therapy requires humidification to offset the tendency to dry-out the airway passages with large volumes of oxygen. Migrating from 5 liter oxygen machines to the full sized 10 liter oxygen concentrators requires upgrading all of the oxygen equipment you may have been accustomed to using. Closer supervision by your physician is also merited due to the greater difficulty in breathing from the increased pressure from greater oxygen flow. At the bottom of this page are links to research studies regarding High-Flow Oxygen Therapy. Some of these studies refer to flows in excess of 30 LPM which would not be suitable for home oxygen therapy but provide valuable information for understanding high flow oxygen.

This oxygen concentrator review examines the top high-flow home oxygen concentrators on the market that offer 8 to 10 liters of oxygen therapy per minute. These concentrators include the two 8 liter concentrators--the Nidek Nuvo 8 and the AirSep NewLife Intensity 8. Three 10 liter oxygen concentrators are also included in this review--the Invacare Platinum 10, the Respironics Millennium M10 and the AirSep NewLife Intensity 10. A side-by-side comparison of the High Flow Home Oxygen Concentrators is provided below this review summary.

Additional oxygen concentrator reviews, rankings and comparison charts can be viewed by clicking on the links below:

Smallest Size High Flow Oxygen Concentrator

Smaller sized oxygen concentrators are easier to move from room to room within your home. Large, bulky concentrators are harder to get through narrow doorways and bump into furniture. All of the five concentrators that made this review have caster wheels to facilitate room-to-room navigation. The smallest high flow concentrators are the AirSep NewLife Concentrators--both the 8 liter and the 10 liter versions each at 6488 cubic inches. However, both of these concentrators are also the heaviest concentrators, weighing in at 57 pounds. The advantage of these small sized concentrators is somewhat reduced by the increased weight. The largest home oxygen concentrator is the Platinum 10 at over 7100 cubic inches. The most lightweight high-flow oxygen concentrator is the Nuvo 8 at 48 pounds. The comparison chart below displays the size and weight for each concentrator graphically. The larger the bubble, the larger the concentrator size. Concentrators at the bottom of the chart have the smallest size. Concentrators to the left of the chart, weigh less. The average size is indicated by the horizontal red line and the average weight is represented by the verticle red line. Concentrators positioned with the "Blue Zone" offer less than average weight and have a smaller size than the average. The AirSep Intensity 8 and the Respironics M10 provide better than average size and weight.



Concentrator with the Lowest Power Consumption

Large oxygen concentrators that offer high-flows are going to use more power to operate than standard home oxygen concentrators. In an age of rising utility rates, finding a high-flow oxygen concentrator that is economical to operate is important to many oxygen patients, particularly since many high-flow oxygen therapy patients run their machines 24/7. The AirSep NewLife Intensity 8 uses the least amount of power to operate, averaging 410 watts an hour. The Platinum 10 Oxygen Concentrator from Invacare is the lowest power consumer amoung the 10 liter machines. The home oxygen concentrator with the highest power consumption is the Respironics Millennium M10, requiring an average of 600 watts an hour.

The national average for the cost of a kilowatt per hour (KWH) is 0.1256 cents. States with high costs for electrical power like New York at 0.1996, Connecticut at 0.1789, Vermont at 0.1713 and California at 0.1632 will require significantly more power costs than the national average. (Source: Edison Electric Institute, June 2014, Typical Bills and Average Rates Report)

Residential U.S. rate map


High-Flow Oxygen Concentrator Power Usage Comparison

Intensity 8
Nuvo 8 NewLife
Intensity 10
Platinum 10 Millennium M10
Average Watts
(Per Hour)
410 500 590 585 600
Daily Watt Usage
(operating 24 hours)
9,840 12,000 14,160 14,040 14,400
Average Daily Cost
(0.1256 cents per KWH National Ave)
 $1.24  $1.51  $1.78  $1.76  $1.81
Annual Watt Usage
(24/7 Operation)
3,594,060 4,383,000 5,171,940 5,128,110 5,259,600
Average Annual Cost
(0.1256 cents per KWH National Ave)
 $451.41  $550.50  $649.60  $644.09  $660.61



The chart above displays the average watts per hour for each high-flow oxygen concentrator with the average daily cost and the average annual cost to operate. Oxygen patients that need 8 liters of oxygen or less can save over $200 annually on their electric bill by purchasing the NewLife Intensity 8 instead of the Millennium M10.

Lowest Noise Concentrator

Hearing the constant drone of an oxygen concentrator can be annoying to an oxygen patient or their spouse. The larger the oxygen concentrator motor, the more noise they emit. High-flow oxygen concentrators have the largest motors in order to generate the high volume of oxygen that high-flow oxygen patients require.

Noise is measured as sound pressure in decibel units. OSHA hearing protection guidelines consider decibel levels above 85 as harmful. Between the range of 51 and 84 decibels, the sound pressure is considered as "non-hazardous noise". Below 50 decibels, sound is considered as comfortable. See the chart below for noise levels.


Noise Decibel Levels

Noise Levels Chart in Decibels


Two of the high-flow concentrators fall in the non-hazardous noise range emitting sound pressures above 50 decibels--the AirSep NewLife Intensity 8 and the Intensity 10. Both of these AirSep concentrators emit 57 decibels of noise. The Invacare Platinum 10 and the Respironics Millennium M10 are both on the edge of the comfortable sound level at 50 decibels. The lowest noise high-flow concentrator is the Nidek Nuvo 8 at 48 decibels.

Best Selling High-Flow Oxygen Concentrator

The Millennium M10 is the top selling high-flow oxygen concentrator at Vitality Medical. It is a 10 liter oxygen machine from Respironics. The Millennium M10 is the lowest price high-flow concentrator and has been a very popular oxygen concentrator for many years. The second best selling is the the AirSep NewLife Intensity 10 Liter Concentrator. The NewLife Intensity 10 has replaced the Sequal Integra 10 which is no longer in production.

Best Performing 10 Liter Oxygen Concentrator

The Respironics Millennium M10 is the best performing high flow oxygen concentrator. It offers the highest concentration levels ranging from 92 to 96%. It offers the highest oxygen outlet pressure ranging from 10 to 30 PSI. Weighing 53 pounds, the M10 concentrator is the most lightweight 10 liter concentrator. The Millennium M10 is made in the USA.

Bonus Features

Like the 5 liter concentrators, Caire/AirSep provides high-flow concentrators with extra bonus features that are hard to ignore. Offering high-flow concentrators with single and dual flow options, optional oxygen monitors, nebulizer outlets and high altitude operation, the Air/Sep Intensity Series Concentrators presents a significant "bang" for your hard earned bucks. The dual-flow option allows you to serve two oxygen patients simultaneously as long as both oxygen patients together do not require more than the total capacity of the machine. For homes with two oxygen patients, the AirSep Intensity Concentrators are a great buy.

Overall Best High-Flow Oxygen Concentrator

The overall best home oxygen concentrator with high-flow delivery is the Respironics Millennium M10. The Millennium M10 offers up to 10 liters of oxygen with the highest oxygen concentration of 92 to 96%. It offers the highest oxygen outlet pressure in a range from 10 to 30 PSI. Even though the M10 concentrator has the best performance features, it is also the lowest weighing 10 liter machine. Noise emissions are in the safe, comfortable zone. The combination of best performance and lowest price make the Respironics Millennium M10 Oxygen Concentrator the best high-flow concentrator on the market. Below is a side-by-side comparison chart of the top high-flow concentrators for sale.

Best Home Oxygen Concentrator 10 Liter High Flow

High Flow Oxygen Concentrator Comparison Chart

8 & 10 Liter Oxygen Concentrators Invacare Platinum 10 Liter Oxygen Concentrator Nidek Nuvo 8 Liter Oxygen Concentrator Respironics Millennium M10 10 Liter Oxygen Concentrator AirSep NewLife Intensity 8 Liter Oxygen Concentrator AirSep NewLife Intensity 8 Liter Oxygen Concentrator
Platinum 10
Nuvo 8

Intensity 8

Intensity 10
Manufacturer Invacare Nidex Respironics AirSep AirSep
Model # IRC10LX 580 M10600 AS094 AS094
Continuous Oxygen Flow
(max LPM)
10 8 10 8 10
Oxygen Concentration 87 to 94% 87% to 93% 92% to 96% 87 to 95% 87 to 95%
Oxygen Outlet Pressure
(max psig)
9  +/- 0.5(psi) 17 10-30 20 20
Operating Altitude
(feet above sea level)
0-6,000 0 - 7,500 0-1368 0-10,000 0-10,000
Cubic Size
7108.89 6722.04 6669.00 6488.03 6488.03
18.75 15.6 19 15.7 15.7
26.375 27.8 27 28.5 28.5
14.375 15.5 13 14.5 14.5
54 53.5 53 54 58
Operating Factors
50 48 50 57 57
Average Power Consumption
585 500 600 410 590
Preventive Maintenance Check
(after # hours)
4,380 N/A N/A N/A N/A
Made In The USA Yes Yes Yes Yes Yes
Compressor Maintenance
(after # hours)
or 3 yrs
Warranty 3 yrs 3 yrs 1 yr 3 yrs 3 yrs



High Flow Oxygen Therapy Studies

Burt Cancaster, Author

Vitality Medical
7910 South 3500 East, Suite C
Salt Lake City, UT 84121
(801) 733-4449
[email protected]

Burt Cancaster Profile