 Before my doctor and I chose BrezTree for my COPD, I had bad days. Flare-ups that could permanently damage my lungs. With BrezTree, things changed for me. BrezTree gave me better breathing. Starting within five minutes, I noticed my lung function improved. It helped improve my symptoms. And BrezTree was even proven to reduce flare-ups, including those that could send me to the hospital. So now, I look forward to more good days.