in Using your Oxygen Concentrator

How do I clean my Inogen’s particle filter?

Your Inogen particle filter(s) must be cleaned weekly to ensure ease of air flow. Remove filter(s) from the front of the device. Clean the particle filter with a mild liquid detergent (similar to what you would find in a supermarket) and water. Rinse the detergent solution off in clean water and allow to dry before reusing.

Please note that the Inogen One G2 has 1 filter located on the front face of the device. The Inogen One G3 has two smaller filters located on the side of the device.