Replacement columns for the Inogen One G4
The Inogen One G4 Sieve Beds – Column Pair are replacement columns for the Inogen One G4 portable oxygen concentrator. The columns are a key component of the device and are also known as molecular sieves.

These columns filter nitrogen out of the ambient air. This leaves concentrated oxygen for use.

Benefits:
Genuine replacement columns for the Inogen One G4
Filter nitrogen from the ambient air
Ensure reliable oxygen production
Easy to replace yourself
Convenient maintenance without the need for technical support
The device automatically indicates when replacement is required
Helps maintain the concentrator’s performance