Eson CPAP Mask Parts & Replacement Components

If you rely on a Fisher & Paykel Eson nasal mask, keeping it working well comes down to two things that wear out long before the mask frame does: the cushion seal and the headgear. This collection carries those exact replacement parts, so you can restore a comfortable, leak-free fit without buying a whole new mask.

The Eson 2 Nasal Mask Seal (Small, 400ESN214) is the soft, clear silicone cushion that rests against your nose. Seals naturally soften and lose their shape over months of nightly use, which is usually the culprit when you start noticing air leaks, red marks, or a mask that just won't stay put. Swapping in a fresh seal is the fastest way to bring back the seal quality you had when the mask was new. It's a single-patient-use component, so replace it on a regular schedule for both fit and hygiene.

The Eson CPAP Mask Headgear (Small, 400HC567) is the adjustable strap system that holds everything in place. Over time the fabric stretches, and once it does, no amount of tightening keeps the mask stable. New headgear gives you back the even, gentle tension that lets you cinch the mask without over-torquing the seal against your face.

A quick note on sizing and compatibility: seals and headgear are sized independently, and the seal must match your mask generation. If you use the newer-generation mask, browse the dedicated Eson 2 collection to confirm you're matching the correct cushion. When in doubt, check the part number printed on your current component before ordering. Both parts here are designed specifically for the Fisher & Paykel Eson line—they won't fit other mask brands.

Refreshing your seal and headgear on a routine basis keeps therapy pressure accurate and sleep uninterrupted, which is the whole point of CPAP in the first place.