Standard Water Chamber for H4i Heated Humidifiers 100285 a built-in HumidAir humidifier

a built-in HumidAir humidifier

The slim-line design allows for almost any sleeping position without mask displacement

The headgear is designed to maintain a firm seal without the need for overtightening

adaptive barrier that feels good on the face while also eliminating air leaks

a wall or airplane seat pocket

Standard Water Chamber for H4i Heated Humidifiers 100285 a built-in HumidAir humidifierThis standard humidifier water chamber (with a frosted tub) will last for 6 months on average with proper care and maintenance. It is compatible with all H4i Heated Humidifiers as well as HumidAire 3i (H3i) Heated Humidifiers that have been upgraded using the H4i Flip Top Lid with Seal (Part 26953) or the H3i to H4i Upgrade Kit.