ResMed Swift FX Nasal Pillows Cushion

The Swift FX seals with two small pillows resting right at the entrance of each nostril, not a cushion over the nose or a mask across the whole face. The smaller footprint keeps your view open and leaves room for glasses. This pillow is the part actually holding that seal.

This pillow fits every Swift FX ResMed ever sold, the plain original, the For Her, the Bella and the Bella Gray, in sizes from Extra Small up to Large. The size printed on your current pillow is all you need to match.

Key Features:

• Free of PVC: ResMed records that the mask system contains no latex, no PVC and no DEHP materials.
• Frame sold apart: The frame system carries its own part numbers by size, separate from these pillows entirely.
• Line retired: ResMed no longer lists Swift FX on its own storefront, though the user guides remain published.
• Two exclusions: The guides rule the mask out for the AutoSet CS 2 and the VPAP Adapt SV devices.
• Easy breathing: Air moves through with little resistance, matching what the AirFit P10 measures on the same test.
• Broad device list: ResMed validates the platform across the AirSense, AirCurve, S9, VPAP, Lumis Tx, Stellar and Astral.

With the line retired from ResMed's own storefront, replacement pillows are how a Swift FX stays in service, and this is the part deciding whether it still seals at all. Everything else on the mask outlives it by a comfortable margin.

Note: ResMed publishes no replacement interval for these pillows, so this page states none. Judge them by condition rather than by a date, and change them once they stop sealing.

One pillow across four products

ResMed's part number sheet prints the same four codes twice, once under the Bella components and again under the Bella Gray components, with nothing altered between them. The complete Bella Gray system is even listed as shipping with the plain headgear assembly.

The device compatibility table tells the same story from another direction: every one of these product names occupies an identical row. Headgear is what you are choosing between when you pick among them, and the sealing hardware underneath does not change.

The orientation check

When a seal misbehaves the usual instinct is to tighten something. ResMed's own troubleshooting entry for this mask starts somewhere else, asking you to confirm the branding on the upper surface is turned away from your face.

Fitted backward, the pillow presents its profile at the wrong angle to the nostril. It will still inflate and it will still pass air, but it bears on the rim rather than sealing against it, which shows up as redness and a leak that no amount of strap tension fixes.

Why no interval is printed

ResMed retired this line from its own storefront, and no current document from them carries a care cadence for the pillows. Rather than borrow a number from a retailer or invent one, this page leaves the field empty and says as much.

One figure does circulate, drawn from a reimbursement schedule that describes how often a payer will cover a replacement. That is an accounting cadence rather than a wear measurement, and it is not the basis on which anyone should be timing a cushion change.

Here's everything that comes in the box.

• One pair of Swift FX pillows, in the size selected above