I am trying to understand why they have a shelf life... what expires in the filters over time?

The molecular sieve, a form of zeolite, allows oxygen molecules to pass but captures nitrogen and other gases. The captured gases are then released and disposed of by an electric reversal of the materials polarity, and a new cycle of oxygen flow initiated. Due to some chemical changes in the zeolite caused by the reversal of polarity, and contamination by trace elements, the efficiency of the whole process slowly degrades over time, until a sufficient concentration of oxygen can no longer be performed. The exchange of new zeolite (in a cartridge form) restores the process to its desired level of efficiency.

So my G5 unit was unused for over a year and now I’m getting column replacement notices. It’s because it’s been idle for over 6 months ?

Either sitting too long or the fact it is a year old. Both are indicators to definitely replace.

How do I know that the new columns are working? I could not get the message that the exchange was successful.

I wasn’t sure my new columns were working either. Called Inogen 800 number and they walked me thru the setup.

Does anyone have instructions for upgrading the ingen g5 so you can change air cleaners at home instead of sending the unit to the factory?

The inogen One G5 Colum Pair RP-502 I ordered came with directions and it was very simple for me to change. There is a video on U-tube also.

Inogen One G5 Column Pair Rp 502

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Description

⚡ Stay powered, stay ahead—oxygen therapy made seamless.

TRUSTED BY EXPERTS - Same trusted supplier as the Mayo Clinic—quality you can count on.
COMPACT LIGHTWEIGHT - At just 748g, these columns keep your portable concentrator sleek and efficient.
EFFORTLESS MAINTENANCE - Swap your columns in under 5 minutes—no tools, no hassle.
SMART REPLACEMENT ALERTS - Your Inogen One G5 notifies you exactly when it’s time to upgrade.
PRECISION OXYGEN DELIVERY - Genuine sieve beds ensure consistent high-concentration oxygen flow.

The Inogen One G5 Column Pair RP-502 features genuine sieve beds designed to convert ambient air into high-concentration oxygen. Engineered for easy, tool-free replacement in under 5 minutes, these columns last 18 to 24 months under normal use, with smart alerts to notify users when replacement is due. Trusted by leading healthcare providers, this lightweight, compact pair ensures your portable oxygen concentrator performs at peak efficiency without downtime.

Specifications

ASIN	B07TH8PV1Y
ASIN	B07TH8PV1Y
Best Sellers Rank	217,536 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 443 in Oxygen Therapy
Brand	Inogen
Customer Reviews	4.7 4.7 out of 5 stars (712)
Customer reviews	4.7 4.7 out of 5 stars (712)
Date First Available	25 Aug. 2024
Manufacturer	Inogen One
Package Dimensions	25.91 x 15.8 x 14.1 cm; 748 g
Units	1.00 count

Reviews

J**H

Replace part in inogen G5

26.09.2022

C**S

This Column fit perfectly into our Inogen oxygen concentrator! We kept getting an error on the screen and it would shut down. Replacing the column was exactly what was needed to make it work again!

7.04.2026

B**Z

Muy facil y rapido el hacer la reposicion

26.11.2023

S**R

Este artículo no funciona es un robo y una lástima que se lucre con la salud de forma fraudulenta

18.10.2023

A**R

i am concerned that there were no dust caps on the top two outlets only on the bottom two inlets. dont know if this will affect product however i cannot return as i desperately need the oxygen now.

16.08.2024

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