The Respironics Integrated Heated Humidifier works with the REMstar Family of CPAP machines, including the REMstar Plus, REMstar Pro 2, and REMstar Auto. It will also integrate with the BiPAP Pro 2, BiPAP AutoSV, BiPAP AVAPS, and BiPAP Plus.
This humidifier WILL NOT integrate with the Respironics REMstar Lite CPAP or with the M Series REMstar line of machines.