@sueinmn Interesting about your inhaling the 7% through the nose and it burning. I have an Innispire Go and it delivers the saline so fast that it makes me cough terribly (I've also had a chronic cough for 3 years from the 2018 flu) so I inhale it through my nose and it works fine...I have to blow my nose a good bit because it runs a little during the inhalation but I've always wondered if that salt must do some good for the nasal passages. I also use my good ole Drive Power NebUltra that is much slower but I inhale through the mouth on that machine. I'm still amazed, though, at how fast the Innispire Go is and how you must lose as much of the meds as you breathe in but I'm not a scientist so I don't know if my hunch is correct. But I do know whenever I'm in a hurry or don't feel like sitting for a longer time I use the Innispire Go. It's a little spotty on working, though. I wouldn't give it 100% on performance. Sometimes it won't turn on so I have to keep playing with it. Nan