Does Activated Charcoal Kill Mold Spores?

Does Activated Charcoal Kill Mold? Get Green Be Well


Mold spores are a common problem in many households. They can cause a range of health issues, from allergies to respiratory problems. One solution that has gained popularity in recent years is the use of activated charcoal. But does it really work? In this article, we will explore the effectiveness of activated charcoal in killing mold spores.

What is Activated Charcoal?

Activated charcoal is a form of carbon that has been treated with oxygen to make it more porous. This increases its surface area, allowing it to absorb more substances. Activated charcoal is commonly used in air purifiers, water filters, and even in some skincare products.

How Does Activated Charcoal Work?

Activated charcoal works by adsorbing (not absorbing) substances onto its surface. Mold spores are attracted to the surface of activated charcoal due to its high surface area. Once the mold spores come into contact with the activated charcoal, they are trapped and unable to continue growing.

Is Activated Charcoal Effective Against Mold Spores?

While activated charcoal has been shown to be effective against some types of mold, its effectiveness varies depending on the type of mold and the concentration of spores. In some cases, activated charcoal may only be effective at reducing the number of mold spores, rather than eliminating them entirely.

How to Use Activated Charcoal to Kill Mold Spores

To use activated charcoal to kill mold spores, you can place it in a bowl or container and leave it in the affected area. Alternatively, you can use an air purifier or other device that contains activated charcoal. It is important to note that activated charcoal will need to be replaced periodically, as it eventually becomes saturated with the substances it has adsorbed.

Other Ways to Kill Mold Spores

Activated charcoal is not the only solution for killing mold spores. Other methods include using bleach, vinegar, or hydrogen peroxide. It is important to follow proper safety precautions when using these substances, as they can be harmful if not used correctly.

Preventing Mold Growth

While it is important to address mold growth once it occurs, prevention is key. To prevent mold growth, it is important to keep your home clean and dry. This includes repairing any leaks or water damage, using a dehumidifier in damp areas, and ensuring proper ventilation.


Activated charcoal can be an effective solution for killing mold spores, but its effectiveness varies depending on the type of mold and the concentration of spores. It is important to follow proper safety precautions and to replace the activated charcoal periodically. Ultimately, prevention is key to avoiding mold growth in the first place.