QuietAir Diffuser Elbow for AirFit F30, AirFit F20 & AirTouch F20 Series CPAP/BiLevel Masks 100657 The Side Cover fits over

The Side Cover fits over the slot where the humidifier chamber would usually be installed in the device

With quiet operation

Standard & Large -- are available

manganese and other contaminants almost instantly

QuietAir Diffuser Elbow for AirFit F30, AirFit F20 & AirTouch F20 Series CPAP/BiLevel Masks 100657 The Side Cover fits overResMed's QuietAir Elbow for AirFit F30, AirFit F20 & AirTouch F20 allows for almost silent air dispersion and a more gentle exhaust airflow than ever before so everyone can enjoy a quiet, comfortable night's sleep. This elbow also features quick release squeeze tabs so it's easy to detach with one hand at night; and it rotates 360 with an independent tube swivel to reduce tubing drag and resistance.