My cat urinated on my bed, no liquid or stains got through my mattress protector, however there is a strong smell of urine. Why?
The mattress protector is designed to be impermeable to liquids but permeable to gasses and vapors. Therefore if the smell of the urine get`s into the mattress it might penetrate the barrier and permeate the mattress. Just use a readily available odor eliminator, this will solve any of your problems.