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

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

Help Track order

Account Cart

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

Help Track order

Account Cart

€ 394.54

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered 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 Italy.

Secure transaction

Description

🛠️ Keep your oxygen flowing, your life going — upgrade your Inogen One G5 with ease!

TRUSTED QUALITY - Genuine Inogen parts with clear instructions for seamless installation and peace of mind.
EFFORTLESS MAINTENANCE - Quick-swap metal columns keep your Inogen One G5 running like new without downtime.
COST EFFECTIVE LONGEVITY - Replace worn sieve beds yourself and extend your device’s lifespan without service center delays.
MAXIMIZED OXYGEN DELIVERY - Precision-engineered sieve beds ensure consistent, high-concentration oxygen flow.
USER APPROVED RELIABILITY - Backed by a 4.7-star rating from over 700 users who restored their device’s performance instantly.

The Inogen One G5 Column Pair RP-502 is a genuine replacement part featuring removable metal columns with sieve beds that convert ambient air into high-concentration oxygen. Designed for easy self-service, these columns extend the life of your Inogen One G5 portable oxygen concentrator by enabling quick, cost-effective maintenance without sending the device for repair.

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

Genuine inogen part complete with instructions

Replace part in inogen G5

26.09.2022

A**R

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

S**A

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

C**S

Perfect fit and works great!

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

A**R

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

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

View all Trustpilot reviews

€ 394.54

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered 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 Italy.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews