ResMed Humidaire 3i™
Heated humidifier for use with all CPAP units in the ResMed S8 series.

ResMed Humidaire 2i™
Heated humidifier for use with all ResMed BiLevel units.

ResMed Passover Humidifier
Basic, non-heated humidifier for older models.

Respironics Remstar™ Humidifier
Heated humidifier for use with older platform Respironics CPAP units.

Respironics M-Series™ Humidifier
Heated humidifier for use with all Respironics M-series CPAP units.