ResMed Quattro™ FX For Her Full Face CPAP Mask Assembly Kit

Where do I find the size?

The size of the mask frame is located in three separate locations.

1. Turn the mask upside down. The flat bottom of the mask frame and mask cushion needs to face the user. A clear letter embossed between the ports cap and the edge of the mask frame will indicate the size of the mask frame.
2. Turn the mask to face the user. Look below the swivel to identify a blue letter, which represents the size of the mask frame.
3. With the mask facing the user, locate the lower connection points for the headgear. A clear letter is embossed on the top of the connection point, where the headgear clip meets the mask frame.

The size of the full face cushion is located on the flat bottom of the cushion. Turn the mask upside down with the headgear facing away from the user. Located on the bottom silicone flap to the right side of the name of the mask, an embossed clear letter will specify the size of the full face cushion. The letter is larger than the word ResMed and Quattro™ FX.

Quattro and Quattro FX mask frames, cushion clips and cushions are NOT interchangeable. Individual cushions are NOT interchangeable within each mask. The size must correspond for the mask to work properly. For more information visit the Mirage Quattro FX Full Face Mask Cushion and Clip.

Sizing Help

The Quattro FX For Her sizes are a bit smaller than the Mirage Quattro sizes. The sizes DO NOT match up directly between the original Mirage Quattro line and the Quattro FX line of masks.

The only difference between the Quattro FX For Her Headgear and the Headgear for Quattro™ FX Full Face CPAP Mask is the color. The headgears are sized the same.

To get an idea of the best size for you, measure from the top of the bridge of your nose down to the place in between your bottom lip and chin. View the images below to see where on the face to measure. Compare your measurement with the size measurements here:

• Small: 3 9/16"
• Medium: 4"
• Large: 4 3/8"

Top placement of measurement:


Bottom placement of measurement:


The Quattro FX For Her CPAP Masks come packaged with a size Medium/Standard (62507) Headgear. A Small size can also be purchased separately.

For help with fitting your new mask, please download the Mirage Quattro FX Fitting Guide.

For help with using your new mask, please download the Mirage Quattro FX User Guide.

For help with finding the correct part and part number for your Quattro FX mask, please download the Mirage Quattro FX Components Guide.

Mask Tips

If you experience airway dryness or irritation, using a humidifier is recommended.

When selecting the proper mask type within the ResMed Mask Fit tool on the S8 and S9 CPAP machines, make sure to set the Mask Setting Options to MIR FULL (if available); otherwise, select FULL FACE as the mask option.