Gotcha. That is what I thought. I have the 'full size unit' for home use, and the Breas for travel. Like Mesabah said, it is a little 'harsher' than the Airsense. I can't really think of a better word than that. It's not unbearable, but it is not quite as comfortable as the Airsense. That thing was a life changer. My wife loves it because she doesn't think I am gonna forget to breathe and die in the middle of the night. I believe that we were able to get the insurance to pay for it as well as the home unit. She's out at a meeting right now, but I will let you know. If I remember correctly, there is some special deal that Delta gets on it.