There are many reasons why walls get moldy, but the main cause is usually the weather. High humidity can make the floor and walls feel damp, as if water has been spilled on them. Prolonged damp conditions will lead to mold growth. This not only affects the aesthetics but also impacts the health of the household members.

Clean mold on walls with bleach.

Javel is a popular bleach currently available. You can easily find this product at most grocery stores. To clean the walls, besides the bleach, you'll need gloves, a mask, a knife, a bucket or basin, a paint roller, and a brush...

First, wear gloves and a mask to protect your skin from direct contact with the bleach. Bleach has a strong alkaline nature that can harm the skin.

Use a knife to scrape off the mold stains on the wall before applying the bleach mixture to the affected areas. This step will help speed up the mold removal process. 

Mix the bleach with water. Use a paint roller to dip into the bleach mixture and apply it to the moldy areas of the wall.

Wait for a while to allow the bleach mixture to soak in, then use a brush to scrub the wall and remove the mold stains. Then, use a clean cloth and water to wipe the wall. Use a fan to help reduce the strong bleach smell and to speed up the drying process, preventing mold from reappearing.

Clean the wall with fresh lemon

Fresh lemon has acidic properties that help remove stains. Additionally, it has a pleasant scent and is completely harmless. Moisten the moldy areas on the wall. Use fresh lemon to rub on the moldy spots, or you can squeeze fresh lemon juice and apply it to the moldy areas. Use a brush to scrub the mold spots, then wipe clean with a cloth.

Use white vinegar and baking soda

Vinegar and baking soda are easy-to-find ingredients. Like lemon, vinegar contains acid and has cleaning properties that can help remove mold from walls.

To clean mold, mix vinegar and water in a 1:1 ratio, then boil it with a little salt. After that, use a paint roller dipped in the vinegar solution and roll it onto the moldy areas. Use a brush to scrub back and forth several times to remove the mold stains.

Baking soda can also help you clean mold stains on walls. Mix baking soda with water in a 1:5 ratio, then use a paint roller to apply the solution to the moldy areas. Scrub the mold stains with a brush to clean them. Afterward, use a cloth to wipe the wall dry. You can also use a fan to speed up the drying process.