FYI, I tried to boil 2 of my acapella devices and they melted… an expensive lesson

I boiled it according to the instructions now I don't remember if it was 5 or 10 minutes. I no longer use any flutter type device with nebulizer, especially since Dr. McShane's airway clearance presentation, where she suggested saline is lost to the flutter device. My goal is to get as much saline in my lungs in the shortest time possible and then spend the time with clearance. I use aerobika when I have trouble getting gunk out and it works quite well. I breathe out through it only rather than in and out. Everyone is different and mileage varies!