Is Cat Urine Saturated Carpet A Health Hazard. People who have allergies may be more susceptible to flareups when they are in a house with a concentration of cat urine in the carpet. A dirty litter box may lead a cat to urinate inappropriately in the home.
However, you probably didn't know that the lingering odor of cat urine is still harmful even if the stain is gone. Cat urine and feces are definitely dangerous for you. Cat urine contains uric acid, which can last in carpets, fabrics and wood for years!