Pugsy, Thank you so much for explaining the advantage of Vpap vs Bipap. I will call my doctor immediately to fax the Aircurve 10 VAuto Rx to the supplier. I hope they don't mind me to exchange my opened box 10S for a new one. I guess, since you mentioned it cost them the same, It will be easy specia...

I must add that at 18 Ipap and 15 Epap numbers AHI are not very good 7 Friday and 15 last night. Raising Ipap make air go to my stomach because of Hital hernia prevents the sphincter between Esophagus and stomach from fully closing.