How long does a male cat’s urine smell take to fade?

A male cat’s urine smells strong and generally takes about two weeks to fade naturally, so if the cat urinates inappropriately, the owner should clean the urine promptly and thoroughly clean and disinfect the area, then spray an odor-removing product there.

If the cat urinates in a relatively enclosed space, the owner should also keep the area ventilated to fully remove the smell of the cat’s urine.