Is Cat Poop Dangerous To Breathe In?

Is Cat Poop Dangerous To Breathe In? Litter boxes that aren’t cleaned regularly enough can contain buildups of urine and feces, resulting in dangerous ammonia fumes. Ammonia, which is a toxic gas, can cause serious breathing issues and other problems. Can you get sick from smelling cat poop? Toxoplasmosis (tok-so-plaz-MOE-sis) is a disease that results