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Comparing the Inogen One G4 and Invacare Platinum Mobile Oxygen Concentrators

Understanding Oxygen Concentrators

Oxygen concentrators are medical devices that extract oxygen from the air and deliver it to the user. They are commonly used by individuals with respiratory conditions such as chronic obstructive pulmonary disease (COPD) or sleep apnea. Unlike oxygen tanks or cylinders, concentrators do not require refills and can provide a medical-grade flow of oxygen.

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But how exactly do oxygen concentrators work? Let's delve into the fascinating process behind these life-saving devices. Oxygen concentrators operate by utilizing a technique called pressure swing adsorption (PSA). This process involves taking in ambient air and passing it through a series of filters to remove impurities such as dust and other particles. Once the air is purified, it is compressed and directed into a molecular sieve bed, which contains zeolite pellets.

Zeolite is a special type of mineral that has a high affinity for nitrogen molecules. As the compressed air flows through the sieve bed, the zeolite selectively adsorbs the nitrogen molecules, allowing the oxygen molecules to pass through. This separation process results in a concentrated stream of oxygen, which is then delivered to the user through a nasal cannula or mask.

The Role of Oxygen Concentrators in Healthcare

Oxygen concentrators play a crucial role in healthcare settings, providing a reliable and cost-effective source of supplemental oxygen. They are used in hospitals, nursing homes, and home healthcare settings to support patients who require oxygen therapy. Concentrators are also portable, allowing patients to maintain their oxygen levels while on the go.

Furthermore, oxygen concentrators have revolutionized the way oxygen therapy is administered. In the past, patients had to rely on bulky oxygen tanks or cylinders, which required frequent refills and limited mobility. With the advent of concentrators, patients now have the freedom to move around and engage in daily activities without the burden of carrying heavy oxygen supplies.

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Key Features of an Effective Oxygen Concentrator

When choosing an oxygen concentrator, there are several key features to consider. These include oxygen purity levels, noise levels, portability, battery life, and user-friendly controls. Oxygen purity levels refer to the concentration of oxygen that the device can deliver, with higher percentages being more desirable for patients with severe respiratory conditions.

Noise levels are another important factor to consider, especially for individuals who require oxygen therapy during sleep. A quiet operation ensures a peaceful sleep environment and minimizes disturbances. Portability is also a crucial feature, as it allows patients to travel and maintain their oxygen therapy regimen wherever they go.

Battery life is particularly important for individuals who rely on oxygen concentrators for extended periods without access to a power source. A longer battery life ensures uninterrupted oxygen supply, providing peace of mind for patients who may be traveling or experiencing power outages. This is where comparisons like oxygo next vs inogen g5, and simply go mini vs inogen g5 become vital in making an informed decision.

User-friendly controls and interfaces make operating the oxygen concentrator easier for patients, especially those who may have limited dexterity or visual impairments. Clear and intuitive controls enhance the overall user experience and ensure that patients can adjust settings and monitor their oxygen levels with ease.

Lastly, factors such as warranty and customer support should also be taken into account when selecting an oxygen concentrator. A comprehensive warranty provides assurance and protection against any potential malfunctions or defects, while reliable customer support ensures prompt assistance and troubleshooting. For those considering an upgrade or a new purchase, comparisons such as inogen g2 vs g5 can provide insight into which model may best suit their needs.

Inogen One G4: An Overview

The Inogen One G4 is a compact and lightweight oxygen concentrator designed for active individuals who require oxygen therapy. With its small size and sleek design, the G4 is highly portable, allowing users to carry it easily wherever they go.

But what sets the Inogen One G4 apart from other oxygen concentrators on the market? Let's dive deeper into its technical specifications, pros, and cons to find out.

Technical Specifications of the Inogen One G4

Here are the updated technical specifications for the Inogen One G4:

  • Weight: 3.3 Pounds
  • Flow Settings: 1 - 3
  • Dimensions: Height: 7.8 in, Length: 5.91 in, Width: 2.68 in
  • Battery Duration: Double Battery - up to 5 hours @ Flow Setting 1
  • Sound Level: 40 dBA @ Flow Setting 2

With a lightweight 3.3 pound design, the G4 is easy to carry around for extended periods of time. The dimensions are compact enough to fit into small bags or backpacks for ultimate portability.

It offers 3 flexible flow settings from 1-3  to meet different oxygen needs. The quiet operation of 40 dBA ensures peaceful therapy, while the double battery setup provides up to 5 hours of use on a single charge.

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Pros and Cons of the Inogen One G4


  • Extremely lightweight at 3.3 pounds
  • Compact and portable dimensions
  • Quiet operation
  • Up to 5 hours of battery life

The lightweight 3.3 pound design makes the Inogen One G4 comfortable to wear and easy to transport, without sacrificing durability. Its compact dimensions mean you can discretely carry it anywhere.

With a quiet 40 dBA operation, you can experience peaceful oxygen therapy. The double battery setup provides up to 5 hours of operation on a single charge - ideal for use away from power sources.


  • Limited to 3 flow settings
  • Higher price point
  • May not be suitable for high oxygen needs

While the G4 offers 3 flow settings, individuals who need a wider range of flow adjustments may prefer other models with more settings.

It also comes at a higher price point than some other portable concentrators. And those with very high oxygen requirements may need a more powerful device.

Overall though, the G4's ultra lightweight and compact design combined with decent battery life makes it a great portable oxygen concentrator for active lifestyles.

Invacare Platinum Mobile: A Closer Look

The Invacare Platinum Mobile is a versatile and durable oxygen concentrator designed to meet the needs of both home and mobile users. It features a robust construction and innovative technology to provide a reliable source of oxygen.

When it comes to choosing an oxygen concentrator, reliability and portability are key factors to consider. The Invacare Platinum Mobile excels in both areas, making it an excellent choice for individuals who require oxygen therapy on the go. Whether you're at home, traveling, or simply enjoying outdoor activities, this oxygen concentrator ensures a steady and consistent supply of oxygen.

One of the standout features of the Invacare Platinum Mobile is its durable and rugged design. Built to withstand the demands of everyday use, this oxygen concentrator is constructed with high-quality materials that can withstand bumps, drops, and other accidents that may occur during transportation. This means you can have peace of mind knowing that your oxygen concentrator is built to last.

Technical Specifications of the Invacare Platinum Mobile

Here are the updated technical specifications of the Invacare Platinum Mobile:

  • Dimensions: 7.5 inches Wide x 3.88 inches Deep x 9.45 inches High
  • Product Weight: 4.8 pounds with 1 battery
  • FAA Approved: Yes
  • Warranty: Three-Year Manufacturer’s Warranty on Unit, 1 Year Sieve Beds and Battery, 90 Day Warranty on Accessories
  • Battery Charging Time: One battery - 2 hours 18 minutes (approximately) from 0% charge to 100%. Two batteries - 4 hours 36 minutes (approximately) from 0% charge to 100%
  • Battery Duration: One battery at a Setting of 1 - 4 hours. Two batteries at a Setting of 1 - 8 hours.

The compact dimensions make the Platinum Mobile easy to transport, while still weighing a sturdy 4.8 pounds including battery for durability. The long 3-year warranty provides peace of mind with this purchase.

With two battery options, you can get up to 8 hours of operation from a single charge. The batteries fully charge in around 2-4 hours so are always ready when needed.

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Pros and Cons of the Invacare Platinum Mobile


  • Durable and rugged design
  • Long battery life up to 8 hours
  • Easy-to-use interface

This oxygen concentrator is built to last with its sturdy and rugged design. It offers excellent battery life up to 8 hours with two batteries, keeping you powered up all day. The intuitive interface makes operating the device straightforward for all users.


  • Heavier at 4.8 pounds
  • Higher price point

The main downside is its heavier weight at 4.8 pounds compared to lighter models like the Inogen One G4. It also comes at a higher purchase price point than some competitor concentrators. 

However, the enhanced durability and battery life help justify the increased weight and cost for many mobile oxygen users.

Direct Comparison: Key Factors


Inogen One G4

Invacare Platinum Mobile


3.3 lbs

4.8 lbs




Battery Life

Up to 5 hrs (double)

Up to 8 hrs (two batteries)


7.8” x 5.91” x 2.68”

7.5” x 3.88” x 9.45”


1 year

3 years

When directly comparing the Inogen One G4 and the Invacare Platinum Mobile, the G4's ultra lightweight design makes it the most portable. But the Platinum offers longer battery life and more durable construction. Use this comparison to evaluate which specs matter most to your oxygen therapy needs.

Key Considerations for Your Oxygen Concentrator

Choosing your oxygen concentrator is an important decision. Keep these tips in mind:

  • Consider your flow rate needs and portability requirements
  • Compare battery life, warranties, and durability
  • Review costs and maintenance needs
  • Research brands and read consumer reviews
  • Speak to your doctor for personalized advice

By weighing up your needs against each product's specs and benefits, you can confidently pick the best oxygen concentrator model for your lifestyle. Focus on portability, battery duration, flow flexibility, and durability when making your decision

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