little_miss_kitty:No we haven't changed any of his litter or different sprays. We've used the same type of litter as he has always had. As for sprays, rarely use them, prefer to open windows.

sullivan:So he could be irriated by the smoke. I thought so. I'll just have to clean my clothes and place my coat into the washing room before I go into the house.

Thank you both for your replies.