If you are living in humid climate then mold is your biggest enemy.
Here is a natural and safe remedy against that, use this spray for cleaning and preventing mold from growing and spreading.
2 cups apple cider vinegar
2 teaspoons Tea Tree Essential oil
1/2 teaspoon Lemon Essential oil
2 teaspoons Grapefruit extract
1 teaspoon of Hight Proof Vodka
Put in the spray bottle and shake before spraying and as you spray, let it seat for a while and then wipe off.