 Okay, so what are the materials that are typically used? Is it a bleach type? Yeah, usually there's a bleach type material. It's an oxygen bleach type of a product or it's a diluted bleach. There are a number of commercial products that are like that that are out there. 30 Second Cleaners is one of them. And you have to apply it and you have to let it sit because it will kill the mold spores and then you rinse it off. But it's a process. There's a lot of elbow grease involved.