This adapter ring is required when you use the H9M humidification system. Please select the correct adapter ring for your nasal mask.
This adapter ring is needed if you use the H9M Humidification system in conjuction with your sleep apnea therapy.
How to connect Transcend II H9M Humidification System
All masks may be used with humidification. Sometimes condensation within the tubing can occur; however, adjustment of the humidifier heating settings can be effective in removing this.