Mold grows on organic material such as paper, dirt, wood and soap scum when the area is warm and moist, making it a likely invader in your bathroom. Not only does it create ugly black spots, it can threaten your health as well. Many attempt to correct the problem by killing the mold, but dead mold spores cause the same health problems. To effectively eliminate the risks associated with mold, it must be removed completely.

Preparation

Mold spores cause cold-like symptoms such as watery eyes, nasal and sinus congestion and coughing and may cause asthma attacks. Stopping the spores from becoming airborne prevents exposure and reduces symptoms. Wetting the area prior to cleaning prevents the spread of spores.

Removal

Removing the existing mold requires scrubbing it from the surface, but this poses the risk of exposure. Wear protective clothing and a facial mask to reduce exposure. For porous surfaces such as wood or paper, removing the mold may not be possible. Discard affected material that cannot be cleaned thoroughly. Place in a plastic bag to prevent the spread of spores and toss in the garbage.

Soap and Water

Cleaning the area to remove visible mold requires warm soapy water and a scrub brush. Use non-ammonia dish or laundry detergent mixed in warm water. Clean the area thoroughly, paying attention to cracks and crevices between tiles or around counters. An old electric toothbrush lifts and removes mold and the accompanying dirt and grime from tight areas. Rinse with cool water to remove residue.

Disinfecting

Disinfecting the area kills remaining mold spores and prevents further growth. Household bleach is an effective disinfectant. Mix ½ to 1½ cup bleach with a gallon of warm water. Heavily affected areas require the stronger 1½ cup bleach solution, and lightly soiled areas can be cleaned effectively with the ½ cup mix. Allow the bleach and water solution to sit for 15 minutes and rinse with plain water.

Preventing Return of Mold

Thoroughly drying the area prevents the return of mold. Wipe down with a soft cloth and increase air circulation. Opening windows or placing fans in the room speeds drying. Adding a dehumidifier to the room or installing an exhaust fan to keep moisture under control provides protection against the buildup of mold.

Source:

North Dakota State University: Removing Mold for a Healthy Home

University of Missouri Extension: How to Prevent Mold and Remove Mildew

University of Georgia: Removing Mold in Your Home

More Information:

University of Florida Extension: How to Clean Up Mold

North Hawaii Education and Research Center: General Procedures For Mold Cleaning