A Nebulizer for My Mom

My Mom was diagnosed with Pulmonary Emphysema few weeks ago and I was very worried for her health. It started when she was coughing uncontrollably on New Years eve. The next day, she became very ill. She was very weak because she didn't have any appetite at all. She couldn't sleep and had a fever.  So she asked my brother to take her to the nearest hospital. They put an IV on her to get her strength back. They took an x-ray and the result was positive. Good thing that this kind of lung disease is reversible and can be treated for six months. She is now home and is on medications and taking vitamins. She is fees better everyday. Now, the doctor prescribed her a nebulizer which is kind of expensive especially that he asked for mebulizer machine. I wonder if this is the best choice or maybe the nebulizer where you can get a refill is much better. I need to do some more research otherwise I would be spending a lot for that machine itself! Well, expensive or not, I am willing to pay just because it is my Moms health. I love her and I want her to get better and be clear from PE again soon.