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Mold Removal

How Long Does Bleach Take To Kill Mold

May 27, 2023

Bleach is a powerful disinfectant that can be used to kill mold. It is important to note that bleach does not always kill mold instantly. Depending on the type of mold, the concentration of bleach, and the surface it is applied to, it can take anywhere from a few minutes to several hours for bleach to effectively kill mold. Additionally, bleach may not penetrate porous surfaces such as wood, so it may be necessary to use a mold-killing product specifically designed for porous materials.

How Long Does Bleach Take To Kill Mold

Bleach is a common household product used to kill mold. Bleach is effective at killing mold on hard, non-porous surfaces, such as bathtubs, sinks, and countertops. The amount of time it takes for bleach to kill mold depends on several factors, including the type of mold, the concentration of the bleach solution, and the amount of time the bleach is left on the surface. Generally, it takes 10 to 60 minutes for bleach to kill most types of mold on non-porous surfaces. However, it is important to note that bleach does not penetrate porous surfaces, such as wood and drywall, so it may not be effective at killing mold on these surfaces.

How Long Does Bleach Take To Kill Mold

1. Prepare a bleach solution: Mix one cup of bleach with one gallon of water.

2. Put on protective gear: Wear rubber gloves, safety goggles, and a face mask.

3. Apply the solution: Use a spray bottle or a brush to apply the bleach solution to the affected area.

4. Let the solution sit: Allow the bleach solution to sit for at least 15 minutes.

5. Scrub the area: Scrub the affected area with a brush or a sponge.

6. Rinse the area: Rinse the area with clean water.

7. Dry the area: Allow the area to air dry completely.

8. Repeat as necessary: Repeat the process as needed until the mold is gone.

In conclusion, bleach can be an effective way to kill mold, but it can take anywhere from a few minutes to several hours depending on the concentration of the bleach and the type of mold. It is important to use a high concentration of bleach and to allow it to sit on the surface for an extended period of time to ensure that the mold is killed.