Hi Dar!
Thanks so much for your questions! While the author may respond here with her experience with breath warmers, I thought you might be interested to know that one of our moderators, Leon, responded to your question in your comment on the article: https://copd.net/living/christmas-slow-lane/comment-page-1/#comments with another great suggestion! I do hope this is helpful!
Best,
Jenn (COPD.net Team)