just got my new Swift LT..how do I know what ...

[Andy99]

this is my first nasal pillow type mask. How do I know what size pillows to use?
I read the directions that came with the mask and no where does it say how to decided if I should use the Large medium or small pillow....

[boston]

I use the same mask, I just tried the medium out, they worked great for me (med should already be on mask). I did try the large one night, but they weren't as comfortable for me.
Just try the mask on, adjust the straps, turn on the machine and see how they feel, if theres any leaks, if you are sitting up when you do this, try laying down also, it will probably fit differently laying down, and you want to figure this out now, not when your sleepy and ready for bed.
GOOD LUCK,
Adam