The replacement Nasal Pillows for the Innomed Hybrid Universal Mask come as a single pair in your desired size: small, medium, or large. All three sizes fit on the Hybrid Universal CPAP Mask.
The pillows are attached by a thin, flexible silicone bar. If needed, the bar can be snipped to allow the pillows to be rotated to better fit the opening of the nostril.
Where do I find the size?
The size of the nasal pillow is determined by the small, clear letter represented on the connecting piece that links the nasal pillows together.