My aunt call me about a rug that sits on her pool house tile floor. I guess the floor is releasing a lot of moisture and has cause the rug to mildew or mold to form? Not sure what type of rug but she is very frugal. There is no real risk in this for me so just wanted to know how I should clean and prevent any mildew from returning. Im almost sure the fiber will be nylon or olifein. thanks