The 431A is pretty comfortable, but is it the most comfortable?? I know it is subjective, and that is fine. We have different reasons for liking different masks.
|Mask: Mirage Swift™ II Nasal Pillow CPAP Mask with Headgear|
|Humidifier: REMstar Heated Humidifier|
|Software: Encore Smart Card Reader - USB|
|Additional Comments: EPAP 8, MIN IPAP 11, MAX IPAP 30, Encore Pro 1.8.65, Oxygen, Heliox|