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FAQ About How to Kill Black Mold

Stachybotrys chartarum, known by its common name of black mold, is a slow growing fungus that can cause serious health issues. Black mold is typically found in homes and buildings where there has been water damage or water collection over a period of time. Killing black mold is essential to maintaining a healthy environment.  

How do I get rid of black mold?


The most important step in getting rid of black mold is drying the water source that is feeding it.  Black mold needs a warm, humid environment to grow. If you have experienced a leak, begin by eliminating the leak and drying the affected areas. If your house is consistently damp, invest in a dehumidifier.


What is the procedure for killing black mold?


Begin by scrubbing the affected area with soap and water. Remove as much mold as possible. If the mold is thick, you may want to begin by scrapping it off with a paint scraper. Once you have removed as much mold as possible, sanitize the area with a cleaning product that kills mold. Finally, thoroughly dry the area. Drywall, for example, can retain moisture deep within the product. Use a dehumidifier or fan to ensure everything is completely dry.


What cleaning products kill black mold?


There are a variety of mold disinfectants. These include common household items such as ethanol alcohol, isopropyl alcohol, hydrogen peroxide and chlorine bleach. Other antibacterial, fungicidal or virucidal ingredients to look for on your cleaning product ingredients list include phenolics, quarternary ammoniums, iodophors and glutaraldehydes.


How long does it take for cleaning products to kill black mold?


Each cleaning product has its own contact time. The product packaging will provide dilution rates and contact times. Be sure to follow these directions exactly for best results.


How do I protect myself from black mold while I clean?


Wear protective gear such as gloves, a respirator or mask and glasses. Long sleeves will help protect from overspray of cleaning products. Turn off devices that circulate air, such as air conditioners and heaters. Use fans that exhaust to the outside. An air purifier will help eliminate airborne particles. When cleanup has been completed, immediately wash your clothes, shower and wash your hair.


How do I kill black mold in my heater or air conditioner?


Discard and replace the filter. Clean the coils using a product safe for your unit. A local HVAC company can recommend one. Empty and clean the drain pan using a cleaning product that kills black mold. If the insulation inside the ductwork has been contaminated, it must be replaced.


What else should I know about killing black mold?


When black mold is dry, it can become airborne. Before you begin to work, dampen dry mold with a spray mister of water or cleaner. Damp mold sticks to its chosen surface, so you can clean without inhaling airborne spores.