This is why (people and cats) they banned smoking from the show halls. When I first started showing, they allowed judges to smoke in the rings! I hated it to start - you wash your cat, have him/her nice and clean and come home and have to rewash the cat cause it stinks of smoking in the show hall!
A lot of cats that were from smoke free homes had allergy problems, breathing problems, etc. after being exposed to smoke that close.
I'm glad its banned. I still feel sorry for those cats that have to live in the smoke at home tho. And besides that, people can get up and leave the hall - but the cats have to sit in the cages and breath/smell it.