Are Dogs Allergic to Vapes? Secondhand Exposure Risks Ecigator One of our vets encountered a concerning situation when her dog came across a discarded cigarette butt that had been thrown into their garden., Seeing the cigarette butt in her dog's mouth she quickly Your dog can't tell you they're breathing in secondhand smoke, but their lungs feel it. Protect your pets by keeping your home tobacco free. #QuitForThem #NationalDogDay MCCS Impact of Tobacco Use on Pet Health Secondhand (and Third Hand) Smoke May Be Making Your Pet Sick FDA