Thanks Pugsy, for your comment. It was very helpful.

Thanks y'all. I very satisfied with your responses. I understand that the N30 might not hold in place as the N30i, but the nose cushion is smaller. Any comments, pros and cons?

I've been using the AirFit N20 for a long time. I've tried many options to stop or heal my nose bridge soreness. I believe that an N30 or N30i would be a better choice. Remarks please.