Trade f10 medium for f10 large

[briantrox]

Hello.

I have a Resmed F10 medium that I have worn for 3 days now and its just to small. I would like to trade someone for a large f10, preferably close to the same condition as mine (used 3 times). Also would be willing to buy one from someone. Please let me know if you have one or know someone who does. Thanks in advance.

Brian