The Hydrogen Peroxide inhalation and ceramic salt inhalers (Himalayan salt) are two that I found. I am searching for low cost ways to deal with my emphysema. Every July my drug insurance runs out and I have to pay nearly $600 for my inhaler. I usually have my DIL get it for me when she visits Mexico but I would like some alternatives. I was researching and came up with these two. Does anyone know if they work?