Introduction
This manual provides instructions for the ResMed AirFit F40 Replacement Frame System. The AirFit F40 is a full face mask frame system designed to offer high seal performance and comfort through a minimalist, flexible, and easy-to-use design. This product includes the frame system only; headgear is not included.

Image: The ResMed AirFit F40 Replacement Frame System, showcasing its minimalist design and clear components.
Key features include:
- Minimalist Design: Offers flexibility and comfort with a slim, low-profile structure.
- Easy Application: Features four adjustment points and magnetic clips for simple attachment and removal.
- Secure Seal: The soft silicone cushion adapts to the face, maintaining a secure seal even with movement during sleep.
- Enhanced Comfort: A fully flexible frame with fabric covers and strategically placed straps ensures a comfortable feel.
- Quick Disconnect: A quick-release elbow allows for fast and easy disconnection.
Safety Information
Important: Keep the mask magnets at a safe distance of at least 6 inches (150 mm) away from implants or medical devices that may be adversely affected by magnetic interference. This warning applies to you or anyone in close physical contact with your mask. The magnets are located in the frame and lower headgear clips, with a magnetic field strength of up to 400mT. When worn, they connect to secure the mask but may inadvertently detach while asleep.
Components
The ResMed AirFit F40 Replacement Frame System includes the mask frame, cushion, and quick-release elbow. Please note that headgear is not included with this replacement system and must be acquired separately if needed.

Image: An exploded view illustrating the individual components of the AirFit F40 mask system, including the frame, cushion, and elbow. Headgear is shown separately and is not part of this frame system.
Setup and Assembly
To set up your AirFit F40 frame system, ensure all components are clean and dry. Attach the cushion to the frame, aligning the connection points. If using existing headgear, connect it to the four adjustment points on the frame. The magnetic clips facilitate easy attachment and detachment of the headgear.

Image: Hands demonstrating how to check the cushion size (SW for Small Wide) on the AirFit F40 mask, ensuring proper fit.
The quick-release elbow connects the mask to your CPAP tubing. To disconnect, simply press the clips on either side of the elbow. This design is intended for ease of use and quick removal.
Operation and Usage
Once assembled and connected to your CPAP device, position the mask on your face. The soft silicone cushion is designed to conform to your facial contours, providing a secure seal. Adjust the headgear (if applicable) to achieve a comfortable and stable fit without overtightening. The flexible frame and high-cheek strap placement contribute to overall comfort during sleep, even with movement.

Image: A woman demonstrating the wear of the ResMed AirFit F40 mask, highlighting its ultra-compact design and how it sits on the face.
Maintenance and Cleaning
Regular cleaning of your AirFit F40 frame system is essential for hygiene and optimal performance. Follow these daily cleaning steps:
- Soak the frame system in warm water with a mild liquid detergent.
- Shake vigorously in the water and hand wash with a soft bristle brush to remove any residue.
- Thoroughly rinse all components under running water.
- Squeeze the fabric on the frame to remove excess water.
- Leave the components to air dry out of direct sunlight before reassembly.

Image: A visual guide detailing the daily cleaning process for the AirFit F40 frame system, including soaking, washing, rinsing, squeezing, and air drying.
Replacement Tips
To maintain optimal performance and hygiene, it is recommended to replace your AirFit F40 frame system every 3 months. Signs that indicate it may be time to replace your mask components include:
- Cracks in the frame or cushion.
- Tears in the silicone cushion or fabric components.
- Other visible signs of deterioration, such as discoloration or loss of elasticity.

Image: The AirFit F40 mask system with a recommendation to replace the frame system every 3 months, alongside a list of signs indicating replacement is due.
Troubleshooting
If you experience issues with your AirFit F40 frame system, consider the following:
- Air Leaks: Ensure the cushion is properly seated on your face and the headgear (if used) is adjusted for a snug, but not overly tight, fit. Check the cushion for any tears or damage that might compromise the seal.
- Discomfort: Re-adjust the headgear to relieve pressure points. Ensure the mask size is appropriate for your face.
- Difficulty Breathing: Check that the quick-release elbow is securely connected and that your CPAP tubing is not kinked or obstructed.
For persistent issues or concerns, consult your healthcare professional or refer to the complete ResMed user guide for your specific mask system.
Specifications
| Product Dimensions | 6.85 x 3.94 x 13.58 inches |
| Weight | 2.88 ounces |
| Manufacturer | ResMed |
| ASIN | B0D7N25676 |
Legal Disclaimer
Masks with magnetic components are contraindicated for use by patients where they, or anyone in close physical contact while using the mask, have the following: Active medical implants that interact with magnets (i.e., pacemakers, implantable cardioverter defibrillators (ICD), neurostimulators, cerebrospinal fluid (CSF) shunts, insulin/infusion pumps) Metallic implants/objects containing ferromagnetic material (i.e., aneurysm clips/flow disruption devices, embolic coils, stents, valves, electrodes, implants to restore hearing or balance with implanted magnets, ocular implants, metallic splinters in the eye).
Support
For further assistance, product information, or to purchase additional components, please visit the ResMed Store or contact ResMed customer support directly.





