I squeeze my bcd down before donning but after having done a complete gear check.
I'm not breathing out of it unless I have to do so.
I've had serious pneumonia twice in my life unrelated to scuba, as far as we know, and have zero interest in potentially compromising my lungs by subjecting myself to anything that so easily can be avoided.
I'm not breathing out of it unless I have to do so.
I've had serious pneumonia twice in my life unrelated to scuba, as far as we know, and have zero interest in potentially compromising my lungs by subjecting myself to anything that so easily can be avoided.