Flip-Top Lid (Cover) with Seal for H4i Heated Humidifiers 1104917 but it can also be

but it can also be used on any CPAP/BiPAP machine that is compatible with "slim" style tubing

under-the-nose nasal cushions from Respironics are designed for use with all DreamWear CPAP/BiPAP Masks

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

This headgear is designed for use with all SleepWeaver 3D Soft Cloth CPAP/BiPAP Masks

The AirFit N20 features ResMed's most adaptive cushion ever

Flip-Top Lid (Cover) with Seal for H4i Heated Humidifiers 1104917 but it can also beThis is the Flip Top Lid (Cover) with Seal that closes and covers the removable humidifier chamber used on all H4i Humidifiers as well as HumidAir 3i Heated Humidifiers.