LiveO2 Dual User AC System

LiveO2 Dual User AC System

The Duel User AC System is the most complete and advanced LiveO2 system, patent pending. This system allows you to train up to two participants at the same time which equates to being able to train up to four people per hour. This is double the capacity of our 20 liter single user AC system. 

Who it is For

This system is perfect for professional facilities, gyms, doctor’s offices, or professional sports teams. The Dual is more cost effective than purchasing multiple units and it has a similar footprint to a LiveO2 single user reservoir. 


Adaptive Contrast Dual User System sports a taller reservoir (8.5ft) and upgraded connectors and valves allowing continuous use (with a 20L, 30L, or 40L configuration). This means there is very little to no downtime between users. 

The larger reservoir also ensures that high-respiratory capacity athletes can train for longer durations with low oxygen air while consuming volumes greater than 120+ LPM. Even uber-athletes can't deplete out the Dual User AC System.


  • Reservoir Height = 8 Feet 4 Inches 
  • Reservoir Width = 4 Feet 10 Inches
  • Minimum Floor Space = 6 x 8 foot space for exercise equipment and Dual User System

Adaptive Contrast Technology

The Dual User System uses the same Patent Pending Adaptive Contrast (AC) tech found in the single user Adaptive Contrast System. In addition to oxygen concentrated air, Adaptive Contrast (AC) provides oxygen depleted air at the flip of a switch. 

By training with oxygen depleted air your cells quickly create an increased demand for oxygen. When you flip the switch back to higher oxygen air your cells can absorb more oxygen. 

Benefits of using AC over Standard (EWOT) reservoir systems include:

  • Increased levels of oxygen in blood plasma and tissues
  • Creating more red blood cells 
  • Expansion of vascular networks
  • Greater energy and cellular voltage
  • Faster recovery/healing/performance

Having an AC system also allows you to use all the guides on our website. You can learn more about the difference between Standard EWOT and Adaptive Contrast here. 

What's in the Box

We designed the Dual User system with feedback from our customers.

Each system includes everything you will need to get started:

  • 20 LPM air separator system (Upgrade to 30L or 40L available)
  • 1 Dual AC reservoir for two users
  • 10 Mask Kits
  • 1 frame kit or choice of hanging options
  • 2 Nonin GO2 Achieve Pulse oximeters

Optional Upgrades

Concentrator Capacities
You have the option to choose one of three concentrator capacities. 

20LPM Capacity - Best for facilities with normal users ( 4 / Hour ) High capacity
30LPM Capacity - Best for facilities or athletics looking for Higher capacity
40LMP Capacity - Best for larger athletic users ( 4 / hour ) Highest thruput

Power Supply 
We offer power supply configurations for anywhere in the world. If you are in North America you are using 120V / 60 Hz. If you are outside the United States and do not know your residential voltage please 
refer to this list.


We offer affordable equipment financing for organizations and individuals. You can learn more the options available or by calling us. 


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