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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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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E£ 34359

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to EGYPT.

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Description

🫁 Breathe Easy, Live Fully — Upgrade Your Oxygen Game!

DUAL PACK CONVENIENCE - Sold as a pair to ensure seamless replacement and uninterrupted use.
LIGHTWEIGHT COMPACT - At just 748g and compact dimensions, it fits perfectly into your active lifestyle.
EFFORTLESS MAINTENANCE - Quick-swap metal columns mean no downtime or costly repairs.
OPTIMIZED OXYGEN DELIVERY - Advanced sieve beds boost oxygen concentration for superior respiratory support.
TRUSTED BRAND RELIABILITY - From Inogen One, a leader in portable oxygen solutions trusted by professionals.

The Inogen One G5 Column Pair RP-502 features removable metal columns housing sieve beds that efficiently convert ambient air into high-concentration oxygen. Designed for easy self-servicing without product returns, this pair ensures continuous, reliable oxygen delivery. Lightweight and compact, it supports an active, on-the-go lifestyle while maintaining peak performance.

Reviews

User

Genuine inogen part complete with instructions

Replace part in inogen G5

26.09.2022

User

Works perfectly.

My wife's Inogen G5 kept throwing alarms and shutting down. After a very simple installation, it is as good as new.

10.07.2026

User

Haslo tu mismo pero con conocimiento

Mi concentrador empezó a marcar bajo nivel de oxígeno y con estas columnas lo pude solucionar

22.05.2026

User

defective?????

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

User

time

very happy with product

17.07.2026

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E£ 34359

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to EGYPT.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Asin	B07TH8PV1Y
Guaranteed Software Updates Until	unknown
Manufacturer	Inogen One
Manufacturer Reference	INORP502AREA
Package Dimensions	25.91 x 15.8 x 14.1 cm; 748 g

Inogen One G5 Column Pair RP-502

Description

Specifications

Reviews

Common Questions