ResMed Replacement Tub for HumidAir H4i CPAP Humidifier humdifer the heated tube can be

the heated tube can be set to one of five heat settings

According to the patient's need

and its improved vent design reduces noise

One set of headgear clips is included with this purchase

Filters out troublesome particles like household dust

ResMed Replacement Tub for HumidAir H4i CPAP Humidifier humdifer the heated tube can beReplacement tub for the H4i Humidair Humidifier, used on S8 machines. The Humidair 4i is an optional upgrade for ResMed S8 CPAP, Autoset Spirit and Autoscore flow generators. The H4i clips onto the front of the S8, replacing the front sound baffle. Make sure your Humidifier is an H4i before you order this replacement tub.