Used Inogen One G3 Gross Particle Filters (Flow Setting 1-5)


The Inogen One G3 is one of the best-known, lightest portable concentrators on the market. More exactly, the main function of the G3 is to produce medical oxygen. However, in order to simplify the life of the users and provide them with the ultimate lifetime of the G3 product, Inogen has included several accessories regarding this device.

Please note that this product is only compatible with Inogen One G3 oxygen concentrator that has a flow setting of 1-5

The Inogen One G3 Gross Particle Filters with Flow Settings from 1-5 are part of the product that requires special cleaning and removal. In fact, it should be replaced every 6 months for the device to function best.

Inogen One G3 Gross Particle Filter Features

  • Only compatible with the G3 unit with flow settings between 1-5
  • 2 filters are included in the package
  • Approximately 1" Wide x 1" Long
  • Weighs 6 ounces
  • Extends the lifetime of the G3
  • Removable
  • Easy to wash and maintain 
  • Reusable
  • Protects against airborne particles
  • FAA Approved

Inogen One G3 Output Filters Specifications

  • Output Filter Replacement Kit Weight: 0.50 lb
  • Output Filter Replacement Kit with Wrench Weight: 1 lb
  • Manufactured by Inogen
  • Eco friendly
  • Replaceable Inogen One G3 Kit comes with two filters and one wrench

The Inogen One G3 Gross Particle Filters are eco-friendly and extremely easy to use. More specifically, the placement and replacement process is adjusted in order to fit the qualifications of each user. The cleaning process is also quite simple, considering the fact that it requires only warm water and soap.

About the Inogen One G3 Output Filter

The Inogen One G3 portable oxygen concentrators are one of the most famous, compact, and lightest oxygen devices. It provides reliable medical oxygen therapy for patients. To use the device to its fullest, Inogen has included several accessories for G3 portable oxygen concentrators accessories

The Inogen One G3 Output Filters are eco-friendly accessories designed to protect the user from inhalation of small particles in their product’s gas flow. An Inogen output filter is conveniently located behind your unit’s removable cannula nozzle fitting and must be checked and replaced every year.

An Inogen output filter replacement kit includes two filters and one wrench essential to access the filter bay in the device. Moreover, these output filters are compatible with Inogens G1 G2 G3, and the Inogen At Home oxygen concentrators.

Aside from the output filters, Inogen One G3 also comes with gross particle filters. The particle filter protects your G3 concentrator from air-borne contaminants, such as specks of dust and pet hairs. This is only ideal for an Inogen One G3 portable oxygen concentrator with flow settings of up to 5.

Keep reading if you’re interested in learning more about the Inogen One G3 output filter!

The filters must always be in place

The most important fact regarding this issue is that the filters must always be in their rightful place - at the intake end of the concentrator. Their function during operation is to provide clean input air, so their absence or mistaken placement can seriously harm the patient.

So, always make sure that both of the particle filters are in place. If the particles are drawn into the system, the action may even damage the equipment.

High priority alerts

Even though the particle filters seem like side section of the G3, they are definitely of high importance when it comes to the most important parts of the device. For instance, they have a significant influence over the work of the batteries, and may even be the cause for a high priority alert.

Battery HOT

More exactly, the batteries have a temperature limit which is connected to the production of oxygen. When the batteries reach their limit and the G3 does not produce oxygen, the patient receives a high priority alert.

When the user receives this alert, there are several things he/she needs to do. First of all, the device must be taken into a cooler place and immediately shut down. Yet, this does not solve the problem. In order to provide a solution, the user must check the functionality of the filters. As a G3 user, always make sure that the air intake and outlet vents have clear access and that the particle filters are clean.

System HOT

Another situation which requires checking of the filters is when the concentrator temperature is high and the oxygen production shuts down. The user needs to check if the air intake and outlet vents have clear access and if the particle filters are clean.

Cleaning the Inogen One G3 Gross Particle Filters

When it comes to cleaning any part of the Inogen One G3, the User Manual specifically points out the importance of cleaning agents types. More exactly, the user must not use other cleaning agents than those specified in it.

Like any other part of the G3, the particle filters don’t support the use of alcohol, isopropyl alcohol, ethylene chloride or petroleum based cleaners. The use of strongly scented detergents can seriously harm the equipment or reduce its lifetime.

In order to clean the filters, the user needs to remove them from the Inogen One G3. Both particle filters need to be cleaned with a mild liquid detergent, such as Dawn, and warm water. After the user of the G3 rinses the filters well, he/she needs to leave them to completely dry out before using them again.

The cleaning of the particle filters needs to occur on a weekly basis. More exactly, it is recommended by the manufacturer to clean the filters once in a few weeks in a normal environment, and at least once a week in dustier environments.

The cleaning of the filters provides the patient with accurate airflow, so the delay of this action may harm the functionality of the device.

Inogen One G3 Output Filters Benefits And Features

Like the other Inogen One G3 oxygen concentrators, these output filters are for the user’s convenience while staying in or running errands. Below are the explanations for why you should consider buying one for your G3 unit.

1. Protects the users from microparticles

This eco-friendly accessory prevents the users from inhaling small particles in the gas flow of their unit. Another Inogen One G3 accessory called gross particle filters has the same function: protecting oxygen therapy patients from inhaling dirty air particles.

2. Compatible with Inogen One G2, G3, and Inogen One At Home

It doesn’t matter whether you’re using the Inogen One Inogen One G2, G3, or the At Home version of the Inogen Ones because you can use the output filter with all of them. Unlike output filters, the Inogen One G3 particle filters are only compatible with the Inogen One G3 portable oxygen concentrators with 1 to 5 flow settings.

3. Simple and easy to remove and replace

The output filters are conveniently located behind the Inogen One G3’s removable cannula fitting and must only be replaced between patients. Moreover, patients should inspect the output filters and make sure to replace them annually.

FAQs About the Inogen One G3 Output Filters

Does Inogen One G3 have continuous flow?

Unfortunately, Inogen One G3 operates on pulse dose settings, not in continuous flow. Pulse flow oxygen concentrators are lighter and easier to carry around using bags than oxygen concentrators with continuous flow settings. 

The Inogen One G3 POCs have a pulse flow setting of 1 to 5 with an 18.9 mL dose. The intelligent pulse dose delivery technology ensures that medical oxygen therapy is delivered efficiently to patients.

Curious about the list of portable oxygen concentrators that offer continuous oxygen flow? We have the list for you!

How long do oxygen concentrator filters last?

Depending on how frequently you operate your portable oxygen concentrators, the Inogen output filters will last you from 6 to 12 months. However, you should inspect them and ensure they are clean to keep the device working correctly.

In most portable oxygen concentrators, the output filters and particle filters are easy to remove from the device and maintain. Although you should replace your filters yearly, properly cleaning your Inogen One equipment parts may last you longer than their expected duration.

If you’re wondering when’s the right time to clean the filters, here are the two indicators you must check:

  1. You can see particles building up during your regular visual inspections. These build-ups could be from mold, allergens, pollens, or any air micropollutants.
  2. You are experiencing specific symptoms, such as drowsiness, headaches, or breathing irregularities. These are obvious signs that your oxygen concentrator is not working correctly, and the filters might be the culprit.

Always remember that a clean filter helps extend the life of your portable oxygen concentrators. In addition, it ensures that your unit continues to work at its peak. Take note that you can replace them anytime instead of just cleaning them.

To know more about how you can clean your filters, scroll through this article.

How should the filter on an oxygen concentrator be serviced?

As mentioned, the Inogen One G3 output filters should be inspected at least once a week and replaced annually.

Besides cleaning and changing your device’s air filters, your oxygen concentrator must be serviced once a year by an oxygen therapy professional. As scheduled, the particular maintenance technician verifies your concentrator’s oxygen purity, flow rate, and flow pressure. They also check the bacteria filter and change the inlet compressor for you.

Curious about the other benefits of portable oxygen concentrators? We listed 16 benefits for your reference! You may check them all here.

Inogen One G3 Output Filters: Your Eco-Friendly G3 Partner

All accessories that come with the Inogen One G3 portable oxygen concentrators have the same objective: to provide patients convenience. The Inogen One G3 Output filters are suitable for oxygen therapy users who need to strain their oxygen away from dirty air-borne microparticles such as dust and pet hairs. This can help you steer clear of asthma, allergies, and other respiratory diseases.

If you’re interested in purchasing the Inogen One G3 output filter or any Inogen One G3 accessories, Sprylyfe is waving at you! Buy now and get free-shipping vouchers and money-back guarantees to assure the products are in perfect condition before arriving at your doorstep.

For more oxygen equipment questions and concerns, don’t hesitate to reach us out at or ring us at 1-800-314-8225.

Inogen One G3 Gross Particle Filters (Flow Setting 1-5) Replacement

Apart from regular cleaning of the gross particle filters, the user needs to replace the filters every 6 months. Even though this may seem like an insignificant action, this is considered as an issue of high importance. In order to provide a longer lifetime of the whole device, the user needs to take care of each individual part of it – particle filters included.

If you have any additional questions regarding the Inogen One G3 Gross Particle Filters (Flow Setting 1-5), do not hesitate to contact us at any time as you please. You are free to do that by reaching out to us at or by simply giving us a call at 1-800-314-8225.