Inogen One® G4® Portable Oxygen Concentrator
- Regular price
- $2,744.00
- Sale price
- $2,744.00
- Regular price
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- Unit price
- per
In stock and ready to ship! 🛑 MODEL DISCONTINUED: Replaced by the New Inogen Rove 4
The Inogen One G4 is no longer available for new purchase and has been permanently replaced by the next-generation Inogen Rove 4 Portable Oxygen Concentrator. The Rove 4 offers the same ultra-compact size with double the flow settings, longer battery life, and Bluetooth connectivity.
CLICK HERE TO SHOP THE SUPERIOR INOGEN ROVE 4 MODEL.
For years, the Inogen One G4 was the go-to ultra-lightweight portable oxygen concentrator known for its incredibly small size. While no longer in production, thousands of G4 units remain in active use across the United States and Canada.
Looking for a New Portable Oxygen Concentrator?
The Rove 4 is the direct successor to the G4 with double the oxygen settings, improved battery life, and modern Bluetooth connectivity for smartphone monitoring.
G4 vs. Rove 4: Why the Replacement is Better
The Rove 4 builds on everything that made the G4 popular—ultra-compact size and lightweight design—while adding significant improvements in oxygen delivery and technology.
| Feature | Inogen One G4 (Discontinued) | Inogen Rove 4 |
|---|---|---|
| Status | Discontinued by Manufacturer | Current Mini Model |
| Maximum Setting | 3 (Pulse Flow) | 4 (Pulse Flow) |
| Weight | 2.8 lbs (with battery) | 2.8 lbs (with battery) |
| Battery Life (Setting 2) | Up to 2.7 hours | Up to 5 hours |
| Sound Level | Around 40 dBA | Under 40 dBA |
| Bluetooth Connectivity | No | Yes |
Inogen One G4: Legacy Support & Service Hub
Keeping Your G4 Running with Certified Expertise
At Main Clinic Supply, we continue to support the thousands of G4 users through our Authorized Service Center. Under the technical leadership of Mark Luther, our team provides service and support to keep your G4 running as long as parts remain available.
G4 Batteries (Still in Production)
Inogen continues to manufacture G4 batteries. We stock both small and large batteries with no discontinuation in sight. These batteries are also cross-compatible with the Rove 4.
Repair Parts (Limited Availability)
Particle filters and sieve beds are available while supplies last. Once manufacturer stock is depleted, these parts will no longer be available.
Upgrade Assistance
If your G4 is reaching the end of its service life, we provide expert guidance on transitioning to the Inogen Rove 4.
Important Information for G4 Owners
If you already own a G4, you can rely on Main Clinic Supply for continued support. We are an Authorized Inogen Service Center and carry genuine parts and accessories that fit your machine.
Three Important Facts for G4 Owners
- Batteries Remain Available: G4 batteries are cross-compatible with the Rove 4. AC/DC power supplies and column pairs also work with both units, making an upgrade easy since your existing accessories carry over.
- Repair Parts Are Limited: Internal components like sieve beds and particle filters are only available while supplies last. We recommend budgeting for a Rove 4 upgrade if your G4 is older or needs frequent service.
- Beware of Counterfeits: If you see a "new" G4 being sold by a non-certified seller, be cautious. It may be old stock or a dangerous counterfeit. Always buy from authorized dealers.
Shop Genuine Inogen G4 Accessories
Frequently Asked Questions
Is the Inogen One G4 still available for purchase?
No. The Inogen One G4 was officially discontinued by the manufacturer. The Inogen Rove 4 is the direct replacement and current mini-sized model.
Are G4 batteries compatible with the Inogen Rove 4?
Yes. All G4 batteries, AC/DC power supplies, and column pairs are fully compatible with the Inogen Rove 4. This makes upgrading easy since your existing accessories carry over.
Can I still get my Inogen G4 repaired?
Yes, for now. Main Clinic Supply is an Authorized Inogen Service Center and continues to provide certified repairs and diagnostics. However, all repair parts including batteries, sieve beds, and particle filters are only available while manufacturer stock lasts.
How long will G4 repair parts be available?
There is no set date, but once Inogen's existing stock of G4 parts is depleted, they will not be replenished. We recommend planning for an upgrade if your G4 is showing signs of wear.
Should I buy a used G4 or a new Rove 4?
For most buyers, a new Rove 4 is the better choice. It comes with a full warranty, better battery life, Bluetooth connectivity, and an additional flow setting. A used G4 may have worn sieve beds, unknown service history, and limited parts availability going forward.
How do I know if a G4 for sale is legitimate?
Only purchase from authorized Inogen dealers. If you see a "new" G4 being sold anywhere, be cautious as it may be old stock, refurbished, or counterfeit. Main Clinic Supply only sells genuine, authorized products.
G4 Technical Specifications
| Specification | Value |
|---|---|
| Model Name | Inogen One G4 Portable Oxygen Concentrator |
| Status | Discontinued (Replaced by Inogen Rove 4) |
| Official Replacement | Inogen Rove 4 |
| Oxygen Settings | 1 to 3 Pulse Flow |
| Weight | 2.8 lbs (with single battery) |
| Average Sound Level | 40 dBA |
| Battery Availability | Still available (cross-compatible with Rove 4) |
| Repair Parts Availability | Limited to existing stock (sieve beds, particle filters) |
Disclaimer: This information is for educational purposes only. Product specifications and availability are subject to change. Contact Main Clinic Supply for the most current information.
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