Slide background

Inogen One G4 Portable Concentrator

New 2020 Model
Only 2.8 Pounds
1 to 3 Pulse Setting

30 Day Risk Free Trial

Free Express Shipping

Drop-it Protection

System Battery Options

Single Battery (2 Hrs)
Double Battery (4 Hrs)
Home Charger
Car Charger
External Battery Charger

    Why More Than 100,000 Oxygen Users Trust OxiMedical
    Best Service Program In The Business • Don’t Settle For Less

    1. 30-Day Risk-Free Trial

    If you’re not satisfied with the portable concentrator you purchased, we’ll exchange it for the portable oxygen concentrator that meets your oxygen needs.

    2. Trade-In Upgrade Program

    If you need to Upgrade to a Higher Flow Oxygen Portable Machine or a Lighter Portable.

    3. Warranty Transfer Program

    If you sell your portable to a third party, we’ll continue to support the manufacturer warranty.

    4. Free Lifetime Technical Support and Software Upgrades

    We are here to answer any questions about your portable oxygen system.

    5. Automatic Replacement Program

    If your portable oxygen needs repair while under warranty, we will provide you with a replacement.

    6. Best Price Buy Back Program

    If you do not have a need for the portable in the future.

    7. Free Drop-It Insurance

    No extra charge if you drop your Inogen G4.*

    Inogen G4 Specifications
    Accessories for Inogen One G4

    Inogen One G4

    Large Double Battery

    Inogen One G4

    External Battery Charger


    Mesh Backpack

    Inogen One

    G4 Hip Bag

    Customer Reviews

    We have a zero-tolerance policy towards fake reviews and falsified customer feedback. Our company guidelines require we invite our customers to leave reviews in an unbiased way.