Hi emilymccartney72, and thanks for your post. I'm sorry to hear you're going through all this now, and are having some concerns with managing your dad's diagnosis and condition. It's all understandable in the face of a new diagnosis for a loved one!
While we cannot provide medical advice or diagnostics over the internet (for your own safety), your concerns certainly warrant a response. Since this is all new for you, your dad, and your family, I thought you might gain some additional insight by familiarizing yourself with the COPD condition.
First, this article focuses on the basics of COPD: https://copd.net/basics/. And next, this article explains the symptoms associated with COPD: https://copd.net/symptoms/.
Since COPD affects each patient differently - treatment, although similar, can vary from patient to patient as well. It is common for some patients to be using inhaler(s) for medication and supplemental oxygen therapy as well. For more specifics regarding your dad's circumstances, it would be best if you discussed his condition, symptoms, and plans for treatment with his physician. That would be the best health care professional to guide you through the expected care of your father.
I do hope this brief reply has provided you with information that you find to be helpful. Please do check back and let us know how you (and your dad!) are doing.
All the best,
Leon (site moderator COPD.net)