Philips Respironics EverFlo Oxygen Concentrator: User & Maintenance Guide (Instructions+Video)

How to Use and Maintain the EverFlo Oxygen Concentrator

The Philips Respironics EverFlo is one of the most reliable stationary oxygen concentrators on the market. Known for its compact design and low maintenance requirements, it provides a steady flow of oxygen for home use. Proper operation ensures both the safety of the user and the longevity of the device.

Initial Setup and Operation

Placement: Position the EverFlo in a well-ventilated area. Keep it at least 15–30 cm away from walls, furniture, or curtains to ensure unobstructed airflow.

Power Connection: Plug the device into a grounded electrical outlet. Avoid using extension cords or adapters.

Flow Adjustment: Turn the power switch to the "On" position. Adjust the flow meter knob until the ball is centered on the line corresponding to your prescribed flow rate (Liters Per Minute).

Oxygen Delivery: Connect your nasal cannula or oxygen tubing to the oxygen outlet port. If you are using a humidifier bottle, ensure it is properly filled with distilled water and securely attached.

Routine Maintenance

To keep your EverFlo running efficiently, follow these simple maintenance steps:

External Cleaning: Weekly, wipe the exterior cabinet of the device with a damp cloth and a mild household cleaner. Always unplug the unit before cleaning.

Air Inlet Filter: The EverFlo is designed to require minimal filter changes. However, you should periodically inspect the filter door for dust. Your equipment provider will typically replace the internal intake filter during scheduled service (usually every 1-2 years depending on usage).

Humidifier & Cannula: If using a humidifier, wash the bottle every 3 days with warm soapy water and rinse thoroughly. Replace your nasal cannula every 2–4 weeks to ensure hygiene and prevent blockages.

Understanding the Indicator Lights

The EverFlo features a simple light system on the control panel:

Green Light: The device is operating normally and oxygen purity is optimal.

Yellow Light: The device is functioning, but oxygen purity may be slightly lower than ideal. Contact your provider for a scheduled check.

Red Light: Indicates a system error or low oxygen levels. Stop use, switch to your backup oxygen source, and contact technical support immediately.

Safety Precautions

No Smoking: Never smoke or allow open flames near the device while it is in operation.

Heat Sources: Keep the concentrator away from heaters or radiators.

Ventilation: Do not block the air intake ports, as this can cause the compressor to overheat.

For a detailed walkthrough, you can watch our instructional video below to see the Inogen One G3 in action.