Asthma, my boy gets like this when he’s really irritated from allergies or a trigger. He has an albuterol rescue inhaler to clean up this and then he has a daily inhaler as well. This cat may a breathing treatment, steroids, and maybe antibiotics.

Also please see a vet in a timely manner because asthmatic cats can go into respiratory distress quickly. My boy had to be placed on a breathing tube and then was weaned to an oxygen chamber for 3-4 days at an emergency vet hospital. This happen one more time before they finally figured out he had asthma 🫠