Activox 4L Concentrator (DISCONTINUED)

ResMed Activox 4L Concentrator (DISCONTINUED)

5.00 Average Rating of 3 Reviews Read Reviews

Discontinued Item:

For Reference: Discontinued December 2018


The Activox is a Portable Oxygen Concentrator designed for active users who require the equivalent of up to 4 LPM of oxygen. LifeChoice Activox's unique "Auto Mode" detects changes in your breathing patterns and adjusts the internal breath detection trigger accordingly. During the day LifeChoice Activox's Active-High Mode detects activity and provides the most oxygen available per pound in any portable device to support higher respiration rates. At night Activox switches to Sleep Mode, increasing trigger sensitivity to detect nighttime breathing and changes in respiratory rates, to provide the proper oxygen levels for successful sleep.

Most POCs deliver oxygen in a strong Pulsed Dose at the beginning of each inhalation period. Typically, not all of the oxygen in this initial pulse is received because the rate and flow exceeds the inhalation rate of the user.

Activox's Pulse Wave Delivery System solves this problem, providing a wave of oxygen in sync with your natural inhalation rate so the oxygen delivered is properly received. Activox's Pulse Wave also minimizes retrograde airflow which helps to reduce common oxygen therapy side effects like nasal irritation and nose bleeds.

The LifeChoice Activox POC is small, lighweight and durable. With Activox you can get rid of oxygen carts and forget about bottle refills. Activox comes in an attractive carry case that can be worn as a small backpack, carried in the hand, worn as a waist pack, or slung over the shoulder. It's easy and convenient to carry the Activox your way, and at 4.83 pounds it won't weigh you down.

The LifeChoice Activox offers a wide variety of power options. Each concentrator comes with an auto-sensing Universal AC Power Supply for use in most countries worldwide; and a DC Power Cord for use in the "cigarette" style sockets found in most cars, boats and other vehicles. When you're away from a fixed power source the Activox's internal battery will power the concentrator for up to 10-hours of use at a setting of 1 or 4-hours at a setting of 4. If you need more time away from fixed power the optional Activox External Battery Pack, adds 2-4 hours of operational time at any setting to your Concentrator. Need more time? Just add more external battery packs!

The only maintenance the LifeChoice Activox requires is wiping the intake vent grille with a Q-Tip if it appears dirty. With its durable construction, the Activox is designed to give years of worry-free use. Furthermore, Activox comes with a 3-year manufacturer's limited warranty so you'll be secure knowing that if something does go wrong your Activox will be covered. This unit includes ResMed's Extended 3-Year Warranty covering the Activox POC, the Sieve Bed & the Internal Battery.

^literature~ ^videos~

Product Information

  • Manufacturer ResMed
  • In the Package Activox 4L Portable Oxygen Concentrator, Carrying Case (with Shoulder and Backpack Straps), Internal Battery, DC Power Cord, AC Power Cord, Accessory Case, 10 Nasal Cannulas, 3-Year Extended Manufacturer's Warranty, and Printed User Guide. External batteries and other extras included depending on bundle selected during checkout.
  • Part Number(s) AOX-P4L-US
  • HCPCS Code E1390 E1392
  • GTIN / UPC Code 08582530040043
  • Warranty 3 Years - Review manufacturer's documentation for full warranty details.
  • Prescription Item Prescription required for the purchase of this item.
  • Country United States of America (Typical Origin)

FAA Approved

  • FAA Compliant Label Included on Base of Unit for Easy Identification. This product meets FAA regulations for use on commercial flights within the US and all international flights that depart or arrive in the US. Click here for TSA / FAA information on traveling with sleep and oxygen therapy. Always contact your airline prior to your flight to confirm any requirements they may have (i.e. a copy of your prescription or a letter of medical necessity) for allowing your device on board.

Physical Specifications

  • Size (Approx) 9.05 x 7.90 x 4.40 Inches
  • Weight (Approx) 4.8 Lbs
  • Display Type LCD

Oxygen Performance Specifications

  • Pulse Dose Settings 1 to 4 LPMeq
  • Oxygen Concentration 90% (+/- 3%)
  • Oxygen Percentage Indicator Yes. Audible & On Screen Low Oxygen Purity Alarm.
  • Sound Levels 44 dBA Typical at 2 LPMeq (Typical)
  • Operating Altitude Up to 13,000 Feet
  • Tubing & Cannula Length Up to 7 Feet (Maximum)
  • Filters External: None Required
  • Alarms No Breath Detected, Low Battery, Low Oxygen Purity, High Temperature, Reset Required.
  • Power Specifications

    • AC (Wall) Power Universal 100-240 VAC, 50-60 Hz
    • AC Power Cord Length 10 Feet (Approx)
    • DC (Mobile) Power DC Power Cord Included
    • DC Power Cord Length 6 Feet (Approx)
    • DC Power Input 11 to 16 Volts DC

    Battery Specifications

    • Battery Type Rechargeable Lithium Ion
    • Battery Size Internal = N/A Built into Concentrator; External = 3.5 x 3.0 x 1.75 Inches (Approx)
    • Battery Weight External = 2.1 Lbs (Approx)
    • Battery Run Time
      • Setting 1 = 10.25-Hrs Internal; 4.75-Hrs External
      • Setting 2 = 8.25-Hrs Internal; 3.75-Hrs External
      • Setting 3 = 5.00-Hrs Internal; 2.75-Hrs External
      • Setting 4 = 4.00-Hrs Internal; 2.25-Hrs External
    • Recharge Time 4-Hours = Internal; 2-Hours = External (Typical Per Battery)
    • Battery NotesBatteries will charge whenever sufficient AC or DC Power is available. Pulse Dose battery run time measured at approximately 20 BPM.


Average Rating of
Total 3 Reviews
  • .Life Saver

    • star-on
    • star-on
    • star-on
    • star-on
    • star-on
    We bought this unit for my mother. It is lightweight. She has no problem carrying it. The battery is long lasting; she can be away from her home for hours. She now has freedom and her mental health has improved greatly.
    Written by Verified Shopper, 2018-10-17
  • .Great for hikes

    • star-on
    • star-on
    • star-on
    • star-on
    • star-on
    I do small hikes in the hills near our home and the Activox works well for that. I have a pair of the external batteries and we bring those along as well. Overall it's a great alternative to my tanks.
    Written by XrisXong54, California2018-08-19
  • .The best little O2 concentrator not in Texas

    • star-on
    • star-on
    • star-on
    • star-on
    • star-on
    I have not had to use it much so far but is it light and a convenient size with numerous ways to carry it. It will be easy to travel with. As much as I would prefer not to need this device, it sure beats the alternates.
    Written by RET, 2013-04-01