How to Kill Toxic Black Mold

Toxic black mold is a common problem in many homes, especially in areas with high levels of humidity. Mold can grow just about anywhere where there's enough moisture, but common places to find mold include bathrooms, carpets, basements, wood, ceiling tiles, and curtains. A little mold is nothing to worry about, but a major infestation of toxic black mold can be lethal. Toxic mold is a major cause of allergies in the home and can lead to more serious respiratory problems. Getting rid of toxic black mold can be a major challenge, but is a necessary step towards preserving the air quality in your home.


Step 1

Locate areas with toxic black mold and spray these or other mold-vulnerable places using white vinegar. According to, white vinegar has powerful cleaning agents that kill mold. It's also non-toxic, cheap, and perfectly OK to spread all over your bathrooms, kitchens, or any other place you're likely to find mold. You can even mop the bathroom floor using vinegar to protect it from mold growth.

Step 2

Try more conventional cleaning products if you're not sold on the white vinegar idea. There are dozens of different cleaners on the market, some better than others. Buy one that is safe to use anywhere in the house and has specific mold-killing agents.

Step 3

Use an air-conditioner when it's particularly hot and humid. Air conditioners "condition" the air (by cooling and dehumidifying it) for optimal human comfort and safety. Use an air conditioner that has a hygrometer or buy one separately. The ideal RH (relative humidity) level for mold growth is around 65 percent, so keep humidity levels well below that (around 40 percent is typical for a home air-conditioning system).

Step 4

In a colder home or particularly cool area of the house, use a humidifier to prevent mold and control the humidity levels if a problem arises. Again, try to keep the relative humidity around 40 percent.

Step 5

Use baking soda to prevent mold on carpets. Just sprinkle some on the carpet and vacuum it up the next morning.

Charlie Higgins

Charlie Higgins is journalist, editor and translator based in Buenos Aires, Argentina. He has written for a variety of lifestyle and niche market websites, including International Food Trader, The Olive Oil Times, microDINERO, Sounds and Colours, Connecting Worlds and The Buenos Aires Reader.