I too will regularly breathe out through the nose, or sometimes through nose and mouth at the same time, especially when on a very relaxed dive when I breathe out continually, slowly through my nose when I am not breathing in. It does help with controlling my breathing and keeping it even. It has the side benefit of preventing mask squeeze, but I don't do it for that reason.
I do it just because it seems natural and comfortable. I find it can lead to fogging sometimes, but I also regularly and deliberately partially flood and clear my mask.
I agree with the previous posters though - ask the instructor if you understood what was said correctly, what was meant, and what the reasons were.
But don't rule out breathing out through the nose out of hand.
P
I do it just because it seems natural and comfortable. I find it can lead to fogging sometimes, but I also regularly and deliberately partially flood and clear my mask.
I agree with the previous posters though - ask the instructor if you understood what was said correctly, what was meant, and what the reasons were.
But don't rule out breathing out through the nose out of hand.
P