Hi Mishell, and thanks for your post and question - it's a good one.
There are cat litter products, which are commercially available, which are more suited for foks with respiratory issues than some other products, If you do a simple internet search using the words, 'cat litter for people with COPD' - you will find a wealth of information to guide you in this regard. You may also want to discuss this with your veterinarian and/or private medical doctor. They may have some practical suggestions for you as well.
What do you think?
Leon (site moderator COPD.net)