5. Spray the Mold
Spray the hydrogen peroxide directly onto the moldy surface until it’s fully saturated. Let it sit for at least 10 minutes. This gives it time to break down the mold and kill spores.
For large areas, work in small sections.
6. Scrub and Wipe
After the wait, scrub the surface using a firm brush or sponge. Be thorough but gentle — you want to remove all the mold without damaging the surface. Wipe away any leftover residue with a clean cloth. Stubborn spots might need a second round.
Even though hydrogen peroxide is safer than bleach, take precautions:
Wear gloves, a mask, and eye protection.
Never mix it with vinegar, bleach, or ammonia — this can create toxic fumes.
Store it in a cool, dark place to preserve its potency.
9. Avoid These Common Mistakes
Don’t rush: Let hydrogen peroxide sit at least 10 minutes before scrubbing.
Don’t skip the source: Clean mold, but also fix the moisture problem — or it’ll come right back.
Don’t rely on bleach: It might clean the surface, but it doesn’t penetrate and kill root mold.
