exit mould remover try it in a small spot to make sure it wont bleach we had this great big playpen mat at playgroup that got left ina puddle and was covered in mould the girls were already to chuck it out I said nope exit mould so I hung it on line sprayed the mould after 5min rinsed it with a hose and let dry in sun, so anyway try it can't hurt as I said spray a little in a area you wont see to check first though