ResMed 61520 Swift FX Replacement Nasal Pillow Cushion X-Small

ResMed 61520 Swift FX Replacement Nasal Pillow Cushion X-Small

The ResMed 61520 X‑Small Swift FX Nasal Pillow Cushion is a replacement element for Swift FX nasal pillow masks, designed for users whose nostrils require the smallest size for a proper fit. The cushion design is “dual‑wall” with a flexible base (sometimes called flex chamber or trampoline base) which allows the pillow to compliantly adapt to facial movements (turning, movement during sleep) without sacrificing seal security.

Technical specifications

• Brand: ResMed
• Reference / model: 61520
• Size: X-Small

Additional product details

• The dual‑wall flaps help maintain seal even when side‑sleeping or when soft tissues shift, since each flap moves with the skin rather than pressing rigidly against it.
• In practice, using the correct size (XS in this case) can make a big difference: better seal, fewer leaks, lower required headgear tightness (reducing facial marks), and more comfortable nights. However, there are trade‑offs. Smaller cushions have less surface area for sealing, which means they are more sensitive to positioning: if not aligned well or if even slightly offset, leaks are more likely. Also, soft silicone will degrade over time (losing elasticity, becoming glossy or creased, etc.), so users must inspect them regularly and replace them when needed. Cleanliness matters as well since oils or buildup affect seal.

Condition

New.