Introduction
This manual provides detailed instructions for the installation, maintenance, and specifications of the Philips Respironics Intake Filter, designed for use with EverFlo and EverFlo Q oxygen concentrators.
The Intake Filter is a crucial component for maintaining the purity of the air entering your EverFlo or EverFlo Q device, ensuring optimal performance and longevity.
Setup and Installation
Follow these steps to locate and install the intake filter:
- Locate the Filter Compartment: The Intake Filter is situated on the back of the EverFlo or EverFlo Q unit, behind a removable panel.
- Open the Panel: Gently pry open the panel. You may use a flat tool such as a quarter or a butter knife to assist in opening the panel if it is snug.
- Access the Filter: Once the panel is open, the filter will be visible inside the cabinet.
- Insert New Filter: If replacing an old filter, remove it and insert the new Philips Respironics Intake Filter into the designated slot. Ensure it is seated correctly.
- Close the Panel: Securely close the panel until it clicks into place.

Figure 1: Accessing the Intake Filter Compartment. This image illustrates the location of the intake filter cover on the back of the EverFlo unit and how to open it using a coin.
Functionality
The Philips Respironics Intake Filter is designed to filter incoming air, removing dust, debris, and other particulate matter before it enters the oxygen concentrator. This process is essential for protecting the internal components of the EverFlo and EverFlo Q devices and ensuring the delivery of clean, filtered air.
Maintenance
Regular replacement of the intake filter is critical for the proper functioning and longevity of your EverFlo or EverFlo Q device.
- Replacement Frequency: The intake filter should be replaced as necessary. On average, it is recommended to replace the filter every 2 years. However, replacement frequency may vary depending on environmental conditions and usage.
- Inspection: The updated Clear Intake Filter features a clear top, allowing for easy visual inspection of the internal filter element. Periodically check the filter for visible signs of dirt or discoloration.
- Replacement Procedure: Refer to the "Setup and Installation" section for detailed steps on how to access and replace the filter.

Figure 2: Philips Respironics Intake Filter. This image displays the filter itself, which is a rectangular grey unit with a transparent top for inspection.
Troubleshooting
If you experience issues related to the intake filter, consider the following:
- Reduced Airflow: If the oxygen concentrator's airflow seems reduced, the intake filter may be clogged. Inspect the filter and replace it if it appears dirty or obstructed.
- Filter Not Fitting: Ensure you have the correct intake filter for your EverFlo or EverFlo Q model. Verify the model number of your device and the filter.
- Unusual Noises: While rare, a poorly seated filter or a heavily clogged filter might contribute to unusual operating noises. Re-seat or replace the filter as needed.
Specifications
| Attribute | Detail |
|---|---|
| Brand | Respironics |
| Model Number | 606959400856 |
| Compatible Devices | EverFlo, EverFlo Q |
| Material | Polyester, Fiberglass |
| Recommended Replacement | Every 2 years (as necessary) |
Warranty and Support
This product is designed for durability and performance. While specific warranty details are typically provided with the original EverFlo or EverFlo Q device, the EU Spare Part Availability Duration for this filter is 2 Years.
For further assistance, technical support, or to inquire about replacement parts, please contact Respironics customer service or your authorized dealer. Always refer to the primary user manual of your EverFlo or EverFlo Q oxygen concentrator for comprehensive support information.
For general inquiries, you may visit the official Respironics website or contact their support channels.







