HC325 Water Chamber for HC100, HC105, HC150 Humidifiers 1090227-with-1090494a The foam air diffusers provide

The foam air diffusers provide whisper quiet performance and comfortable therapy without drafts

This package includes both the clear tank with seal and the dark gray lid

The dual-wall Spring Air cushion improves overall seal and reduces pressure at the nasal bridge

the one-piece RollFit Seal rolls back and forth on the nose

Two sizes of Amara Headgear -- Standard and "RS" Reduced Size -- are available to fit a wide range of faces

HC325 Water Chamber for HC100, HC105, HC150 Humidifiers 1090227-with-1090494a The foam air diffusers provideThe HC325 Humidifier Water Chamber is designed for use with all Fisher & Paykel HC100, HC105, and HC150 Series Humidifiers. Each chamber has two hose ports on the top of the chamber.