As explained on my post, the problem is not the machine. The problem is that I am allergic to silicone. All masks are manufactured with silicone. The only mask that has foam seal is the Resmed Airtouch F20. but some how the silicone touched the bridge of my nose and produce an indentation on the skin. What I need is a nose pillow type of mask. But since these type is also made o silicone, I am looking for a cream or lotion that could prevent the silicone damage on my nose.