Inogen One G4 Portable Oxygen Concentrator w/ 4-Cell Battery

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Inogen G4 Manual
Inogen (Model: IS-404)
Price: $2,295.00
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3 Years Warranty
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The Inogen One G4 is the most lightweight portable concentrator going up to 3 LPM pulse dose. This sleek, yet efficient concentrator weighs only 2.8 lbs.

Weight Liters Per Minute Sound Level Length Width Height Warranty
2.8 lbs 1-3 LPM 40 dB 5.91" 2.68" 7.2" 3 Year Limited

Inogen One G4 Portable Oxygen Concentrator w/ Single Battery

The Inogen One G4 Portable Oxygen Concentrator is the smallest portable oxygen machine from the popular brand, Inogen. The G4 Oxygen Concentrator is able to provide you with oxygen from an incredibly quiet & small package. With oxygen flow settings from 1-3, the Inogen One G4 is capable of increasing your independence & freedom day & night.

Inogen One G4 Portable Oxygen Concentrator

The Inogen One G4 Oxygen Concentrator features Inogen's Intelligent Delivery Technology, which is what sets it apart from competitors. The Inogen One portable oxygen system ensures that oxygen is delivered within the first 400 milliseconds of breathing in, which is when oxygen has the most effect on lung gas exchange. The Inogen One G4 utilizes innovative triggering sensitivity to quickly detect a breath and deliver oxygen within this critical period. Less sensitive oxygen concentrators may create lags in the onset of the bolus, resulting in portions of the delivered bolus arriving too late, which has less effect on lung gas exchange.

Inogen One G4 Portable Oxygen Concentrator

Inogen One G4's Intelligent Delivery Technology also accurately detects your breathing rate and adjusts the oxygen level provided accordingly. If you’re exercising or physically active, the unit will provide smaller, quick bursts to provide you with the right amount of oxygen. However, while resting or sleeping, the system provides slower & larger amounts of oxygen to correspond with your decreased rate of breathing. This means the G4 can be effectively used during sleep at night, an area where many other portable oxygen concentrators fall short. With the G4, you won’t need to use any other oxygen system for your respiratory care needs, whether it be during day or night.


4-Cell Battery Run Time 8-cell Battery Run Time
Setting 1.0 3.0 hours 6.0 hours
Setting 2.0 2.0 hours 4.5 hours
Setting 3.0 1.25 hours 2.5 hours
Weight 2.8 lbs
Dimensions 5.91" x 2.68" x 7.2" (Height Includes Single Battery)
Oxygen Flow Intelligent Delivery Technology
Three Flow Settings From 1-3
Power Settings AC Power Supply 100-240 V, 50-60 Hz
(Auto Sensing to Allow Worldwide Use)
DC Power: for mobile use in car/airplane
Noise Level 40 dBA on Setting 2
Warranty Concentrator: 3 Years
Concentrator Sieve Beds and Accessories: 1 Year
See Limited Warranty Statement for Details.
Use Designed for Stationary, Portable, and Travel

4-Cell Battery Run Time 8-cell Battery Run Time
Setting 1.0 3.0 hours 6.0 hours
Setting 2.0 2.0 hours 4.5 hours
Setting 3.0 1.25 hours 2.5 hours

Our service area covers most of Southern California including Los Angeles and surrounding cities.
To see a full list of cities covered in our service area please .

Agoura Hills
Alhambra
Altadena
Arcadia
Arleta
Artesia
Avalon
Azusa
Baldwin Park
Bel Air
Bell
Bell Gardens
Bellflower
Beverly Hills
Bradbury
Brentwood
Burbank
Cahuenga Pass
Calabasas
Camarillo
Canoga Park
Carson
Cerritos
Chatsworth
Claremont
Commerce
Compton
Covina
Cudahy
Culver City
Diamond Bar
Downey
Duarte
Eagle Rock
El Monte
El Segundo
Encino
Gardena
Glendale
Glendora
Granada Hills
Hawaiian Gardens
Hawthorne
Hermosa Beach
Hidden Hills
Huntington Park
Industry
Inglewood
Irwindale
Kagel Canyon
La Canada
La Crescenta
La Habra Heights
La Mirada
La Puente
La Tuna Canyon
La Verne
Lake Balboa
Lake View Terrace
Lakewood
Lancaster
Lawndale
Lomita
Long Beach
Los Angeles
Lynwood
Malibu
Manhattan Beach
Marina Del Rey
Maywood
Mission Hills
Monrovia
Montebello
Monterey Park
Montrose
NoHo Arts District
North Hills
North Hollywood
Northridge
Norwalk
Oak Park
Olive View
Oxnard
Pacific Palisades
Pacoima
Palmdale
Palos Verdes
Panorama City
Paramount
Pasadena
Pico Rivera
Pomona
Porter Ranch
Redondo Beach
Reseda
Rolling Hills
Rosemead
San Dimas
San Fernando
San Gabriel
San Marino
Santa Barbara
Santa Clarita
Santa Fe Springs
Santa Monica
Sepulveda
Shadow Hills
Sherman Oaks
Sierra Madre
Signal Hill
Simi Valley
South El Monte
South Gate
South Pasadena
Stonehurst
Studio City
Sun Valley
Sunland
Sylmar
Tarzana
Temple City
Thousand Oaks
Toluca Lake
Toluca Woods
Topanga
Torrance
Tujunga
Valencia
Valley Glen
Valley Village
Van Nuys
Ventura
Vernon
Walnut
Warner Center
West Covina
West Hills
West Hollywood
West Toluca
Westlake Village
Westwood
Whittier
Winnetka
Woodland Hills