Flip-Top Lid (Cover) with Seal for H4i Heated Humidifiers 1104917 The Side Cover fits over

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

For best performance SoClean 2 filters should be replaced on average every 6 months

The AirFit N20 features ResMed's most adaptive cushion ever

adaptive frame is held in place by a soft

These original Philips Respironics brand white ultra fine fiber filters (with integrated carrier) are an optional accessory used to improve overall filtration on all DreamStation GO Series Portable CPAP/APAP Machines

Flip-Top Lid (Cover) with Seal for H4i Heated Humidifiers 1104917 The Side Cover fits overThis 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.