Great for allergy sufferers
It won’t replace my swift fix nasal pillow, but I often go through bouts of bad allergies and stuffy sinuses. At such times the swift fx is useless, unless I use strong decongestant which brings on its own set of problems. That’s when the F 30 comes in. Very comfortable, no leaks for side sleeping, no claustrophobia, very quiet . I ( male) ordered medium, not knowing there is a fitment guide.. It fit perfect.
Reviewed by: Curly from Here.