My husband got a good report @ Dr. appointment. His lung is staying inflated even after removing the tube last night. There's a 10% chance that it might collaspe again. He has not been sick, we can't think of anything that could have caused it.He isn't a smoker, never has smoked, but did grow up with parents that did & worked with smokers in an office for years before they it was ban. So, dr thinks second hand smoke could be the cause. Husbands first hospital stay! He is feeling much better now. Thanks for all your thoughts & prayers. Merry Christmas