 For 10 or 15 minutes after you're done with the bath or shower, it's going to reduce the humidity in the room, and that can also reduce the amount of mold that you're seeing. All right. Next up, we've got one here from Lynn in New Hampshire, who's got a home with cedar siding. She says, I power washed it last year to get rid of all the things growing on it, and now I want to know, what should I be putting on it this year to protect those shingles? So, good question. First of all, if you just want to protect them from UV so that the shingles themselves don't crack, you can use a clear,