Inogen One G4 Particle Filter

The Inogen One G4 Particle Filter is a washable and reusable filter that helps keep dust, pet hair, and other air-borne contaminants away from your oxygen. The filter covers the air intake screens to filter out these contaminants and is easy to clean – simply wash and dry weekly (more often in very dusty environments). Inogen recommends replacing the filter when it become misshapen or when the screen is damaged. With proper care, this particle filter will help keep your Inogen One G4 running smoothly.