Cigarette smoke can cause respiratory issues and put your cat at risk of getting cancer. Secondhand smoke is particularly dangerous to cats since they live indoors under constant exposure with every breath they take. Every surface in your home will be covered with smoke residue so your cat will absorb this through her skin with every step and whenever she lies down. And the smoke residue will also settle on your cat herself and she will ingest it every time she grooms herself or a companion cat. Thus the best thing for your cat is to make your home smoke free. If this isn’t possible, open the windows often to air out your home and lower the concentration of dangerous smoke. Wash all cloth items often, especially your cat’s bed and blankets and anyplace she lies down on. Empty ashtrays promptly since cigarette butts can poison your can if ingested. For more information, contact your Plano, TX veterinarian. Or visit this website Coit Hedgcoxe Animal Hospital.