I subconsciously block my nose off when breathing through my mouth with a reg, so there is not airflow out my nose unless I want there to be.
@Ryan Neely, I'm pretty sure that this is the simplest explanation for your issue.
To the best of my ability, I would guess that somehow I'm still subconsciously routing my breath from my mouth and directly into my nasal cavity. I just don't understand it, though.
Thanks for the vid, most helpful.
I tend to do the same thing when I'm really relaxed. There will be a small but steady stream of bubbles coming out of my mask skirt BETWEEN the inhale and exhale. I don't see any possible way to have your nose and mouth working in opposition. You can close either one off or open/close both at the same time but that is about it.
No, I don't hold my breath. I keep an open passage to my lungs at all times (even between inhales and exhales) but I don't mind my 'lazy' soft palate generating a little stream of bubbles unless I'm listening for something then I block it.
My guess:
Soft palate: Structure, muscles, function | Kenhub
“When it comes to speech, the soft palate tenses and elevates. In this case, the back of the tongue presses against the soft palate in order to produce the velar sounds, which in English language are the [k], [g] and [ŋ]. It is important that the movement of the soft palate closes the communication with the nasal cavity. Otherwise, some air escapes from the oral cavity through the nose, making the speech sound nasal.”
Equalising for Freediving
“THREE SIMPLE EXERCISES FOR BUILDING AWARENESS OF SOFT PALLET: (Palate)
Breathe in the nose and breathe out of the mouth. Practice in front of a mirror so you can see the movement of the soft pallet at the back of your throat. Without the use of the mirror, you can feel the soft pallet open and close.
Inhale deeply and hold your breath keeping your cheeks inflated. Now blow out though the mouth (slowly) only whilst keeping your cheeks inflated. If no air has moved through your nose, this means your soft pallet is closed.
Inhale deeply holding your breath and again keeping your cheeks inflated. Slowly, let air out of your nose whilst keeping your mouth shut. You will notice that once you are holding your breath, your soft pallet is closed. As soon as you slowly let air out of your nose, your soft pallet opens. This means air is flowing from your oral to nasal cavity!”
And then there is this:
Air bubbles out my nose when I breathe...