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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Inogen One G4 Portable Oxygen Concentrator – Ultra Lightweight Pulse Dose Travel Oxygen SystemThe Inogen One G4 is the lightest portable oxygen concentrator available 2. 8 pounds with the single battery. It fits in a fanny pack, disappears into a tote bag, and sits on the seat beside you in the car without requiring a thought. For patients on settings 1 through 3 who want oxygen that is simply present without being noticed by themselves or anyone else the G4 is in a category by itself. Clinically validated for 24 7 use. FAA approved. Bluetooth
The Inogen One G4 is the lightest portable oxygen concentrator available — 2.8 pounds with the single battery. It fits in a fanny pack, disappears into a tote bag, and sits on the seat beside you in the car without requiring a thought. For patients on settings 1 through 3 who want oxygen that is simply present without being noticed — by themselves or anyone else — the G4 is in a category by itself. Clinically validated for 24/7 use. FAA-approved. Bluetooth monitoring via the Inogen Connect app.
Pulse dose only. Settings 1-3. Prescription required — bring yours when you come in or call before ordering. In-stock units available at all five SW Florida showrooms.
Questions about whether the G4 matches your prescription?
Call 866-218-0902
-- Mon-Fri 9AM-5PM · Sat 9AM-3PM · Try it in any SW Florida showroom · 10-Day No-Risk Trial
Before you order — confirm these
The G4 covers settings 1-3 only. If your prescription requires settings 4 or above, the G4 is not the right unit — call us and we will find what is. Battery life is short — plan your day around power access. Pulse dose during sleep requires physician guidance. In SW Florida summer heat, plan for 70-75% of published battery runtime. 866-218-0902
What Makes the G4 the One That Goes Everywhere
2.8 lbs — Lightest Portable Oxygen Concentrator Available
There is a specific kind of freedom that 2.8 pounds makes possible. It fits in a fanny pack. It disappears into a tote bag. It sits on the seat beside you without requiring a thought. For patients on settings 1-3 who want oxygen that is simply present without being noticed, the G4 is in a category by itself.
40 dBA · Bluetooth · Clinically Validated 24/7 · FAA-Approved
Quiet enough for a restaurant or waiting room. The Inogen Connect app provides real-time Bluetooth monitoring for patients and caregivers. Clinically validated for 24/7 waking use. FAA-approved for domestic commercial flight — the right travel companion for snowbirds flying frequently.
Know the Battery Limitation — Plan Around It
Up to 2.6 hours on the single battery, up to 5 hours on the double. The G4 is the right tool for patients always within reach of AC power — medical appointments, visiting family, short errands. For all-day use away from power, carry spare batteries or consider the G5 or Rove 6.
What's Included
- Inogen One G4 Portable Oxygen Concentrator
- 8-cell single battery
- AC power supply
- DC car adapter
- Carrying bag
- Nasal cannula
- User manual
Full Specifications
| Model | Inogen One G4 |
| Delivery Type | Pulse dose only |
| Settings | Pulse dose 1-3 |
| Weight | 2.8 lbs (single battery) · 3.3 lbs (double battery) |
| Dimensions | 7.2"H x 5.91"W x 2.68"D |
| Battery Life | Up to 2.6 hrs (single) · Up to 5 hrs (double) |
| Noise Level | 40 dBA |
| Connectivity | Bluetooth · Inogen Connect app (iOS and Android) |
| AC Power | 100-240V worldwide |
| DC Car Power | Yes |
| FAA Approved | Yes — domestic commercial flight |
| Clinically Validated | Yes — 24/7 waking use |
| Warranty — Concentrator | 3-year or Lifetime |
| Warranty — Accessories | 1 year |
Complete Portable Oxygen Concentrator Buying Guide
Comparing the G4 to the G5, Rove 6, or a higher-setting unit? Our 2026 guide covers every concentrator we carry and explains the clinical differences that actually matter. Read the Complete Portable Oxygen Concentrator Guide →
Frequently Asked Questions
The G4 is the lightest unit Inogen makes — 2.8 lbs — but covers only settings 1-3. The G5 covers settings 1-6, weighs 4.7 lbs, and delivers up to 13 hours on the double battery. If your prescription is settings 1-3 and weight is the priority, the G4 is the answer. If you need settings 4-6 or all-day battery life away from power, the G5 is the right unit. 866-218-0902.
The G4 is clinically validated for 24/7 waking use. Whether it is appropriate for nighttime use depends on your specific prescription and breathing pattern during sleep. Your physician's guidance on nighttime use is essential before using any pulse dose unit overnight. 866-218-0902.
The G4 single battery delivers up to 2.6 hours; the double up to 5 hours. In SW Florida summer heat, plan for 70-75% of those figures. For patients who are always near AC power — medical appointments, visiting family, short errands — this is manageable. For longer outings, carry a spare double battery and know where you can plug in. If your day regularly takes you away from power for 6+ hours, the G5 or Rove 6 is a better fit. 866-218-0902.
Yes — FAA-approved for domestic commercial flight. The concentrator checks at the gate door; batteries must be carried in the cabin. Given the short battery life, bring multiple batteries and calculate 150% of total travel time. Call the airline at least 48 hours before your flight. 866-218-0902.
Yes. Our 10-Day No-Risk Trial lets you take the G4 home and use it in your actual life for 10 days. If it is not the right fit, bring it back and we will exchange it. No restocking fee, no fine print. Walk-ins welcome at all five SW Florida locations. 866-218-0902.
Compare Portable Oxygen Concentrators
Most Prescribed — Settings 1-6
Inogen One G5
Settings 1-6 · 4.7 lbs · 13 hrs (double) · 8-yr service life
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Latest Inogen — Longest Battery
Inogen Rove 6
Settings 1-6 · 4.8 lbs · 12 hrs 45 min · 37 dBA
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Lightest 5-Setting · Made in USA
3B Medical Aer X
Settings 1-5 · 4.25 lbs · 5.5 hrs · Magnetic cannula port
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All Pulse Dose Concentrators
Full Pulse Dose Lineup
Every pulse dose unit we carry — all settings, all weights
Browse all →
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Southwest Florida Showrooms & Nationwide Shipping
Five locations where you can hold this unit and speak with a Respiratory Therapist before buying — Venice, Sarasota, Port Charlotte, Fort Myers, and Naples. White-glove delivery available across SW Florida. Nationwide shipping on all models. Our 10-Day No-Risk Trial is available on every concentrator we carry.
📞 866-218-0902 · Mon-Fri 9AM-5PM · Sat 9AM-3PM · Find your nearest location →
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Excellent Summer Learning Workbook
Format: Paperback
The Summer Bridge Activities Kindergarten to 1st Grade workbook is a fantastic way to keep kids engaged and learning over the summer! It covers a great mix of subjects, including math, language arts, science, social studies, and even fitness activities. The exercises are fun, age-appropriate, and designed to reinforce key skills while preparing kids for the next grade.
I love the balance between learning and interactive activities—it keeps children motivated without feeling like homework. The layout is colorful and easy to follow, making it a great resource for both parents and kids. Highly recommend for summer learning and skill retention!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2025
★★★★★ 5
Excellent Summer Workbooks - Keeps Kids Engaged and Ready
Format: Paperback
These workbooks have been an absolute lifesaver for keeping my kids on track over the summer! I was looking for a resource that would help them retain what they learned and prepare for the next school year without feeling like a chore, and these deliver perfectly.
What I particularly love is how well **organized they are by days**. This structure eliminates any guesswork and makes it incredibly easy to assign manageable chunks of work each day, which helps to **keep my kids consistently on track**. There's no overwhelm, just steady progress.
The content is engaging, and it genuinely seems to reinforce key concepts in a fun way. We've had **absolutely no complaints** from the kids, which is a huge win for any summer learning material! I highly recommend these workbooks for any parent looking for a structured and effective way to bridge the academic gap during the summer break.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2025
★★★★★ 5
⭐️⭐️⭐️⭐️⭐️ An Engaging Way to Prevent Summer Slide!
Format: Paperback
This Summer Bridge Activities Workbook is an essential tool for keeping kids engaged in learning over the summer! Covering reading, writing, math, science, and social studies, it ensures a well-rounded review of key subjects in just 15 minutes a day. The fun, interactive activities keep kids motivated, and the inclusion of flashcards, stickers, and online IXL practice adds extra value. I’ve recommended this to parents every year because it helps students transition smoothly into the next grade while maintaining their academic progress. If you want to prevent learning loss in a fun, low-stress way, this workbook is a fantastic choice!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2025
★★★★★ 5
Good review
Format: Paperback
This workbook touches on many important skills that are taught in 3rd grade. It’s a great workbook that can be used by parents or someone who is doing summer tutoring.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
★★★★★ 4
Great summer workbook
Format: Paperback
This book is a great tool to use over summer break to prevent loss of learning. I have been using this book with my 2nd grader for a few weeks and he enjoys the short lessons. I would prefer the lessons have a few more questions to cover each lesson.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 26, 2025
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