Treat mold affected areas by first misting them with a spray bottle of clean water. This procedure keeps the mold spores from going airborne during the cleaning process.
Scrub the affected areas on non-porous particle board thoroughly with a medium-bristle brush and a non-ammonia detergent until you've completely removed the mold.
Mix a solution of ¼ cup bleach to 1 gallon water. Use a spray bottle to apply the solution liberally to the particle board.
Allow the solution to set on the particle board for 20 to 30 minutes.
Rinse the particle board with clear running water.
Dry the particle board quickly and completely by placing a fan to blow on the wet area. Open the area to outside ventilation where possible.