How interchangeable are the Philips Respironics Dreamwear masks (full face, nasal, pillow)

[Spot123]

In looking at the Dreamwear line on Cpap.com, it looks like the snap connection for the series is interchangeable. If I have the FFM, can I order just the cushion part of the nasal or pillow masks to try out? The straps on the back of the head look a little different too so the pressure points and "angle of the pull" looks like it might be a little different?? Has anyone trying swapping them out?
Thanks.

[KobeT]

The headgear part of the cushion and the pillows is different but the frame is the same.

[Okie bipap]

The same head gear is used for the nasal cushion and the nasal pillows. The full face mask takes a different head gear. I have seen head gear and cushions offered on eBay. The ones I just passed on to other people came from eBay.

[Spot123]

The same head gear is used for the nasal cushion and the nasal pillows. The full face mask takes a different head gear. I have seen head gear and cushions offered on eBay. The ones I just passed on to other people came from eBay.

Thanks all. Okie bipap's post is what gave me the idea -- I can use the same silicon frame from the FFM that I have with

this:
https://www.cpap.com/productpage/pr-dre ... p-headgear

and one of these:
https://www.cpap.com/productpage/pr-dre ... al-pillows or https://www.cpap.com/productpage/pr-dre ... al-cushion

Has anyone ever tried a soft cap? Any benefits to these? I'm thinking it might save some of my hair.
https://www.cpap.com/productpage/softca ... #specs-tab