Mold in the home isn’t just an eyesore — it can trigger allergies, respiratory problems, and skin irritation. It thrives in damp, poorly ventilated areas and can spread quickly on walls, ceilings, wood, and furniture. Removing it promptly is essential for protecting both your health and your home.
One of the safest and most effective remedies is hydrogen peroxide. Unlike bleach, which only kills surface mold and leaves toxic residue, hydrogen peroxide penetrates porous materials like drywall and wood, destroying mold at its root. A 3% solution, easily found in most stores, works best for household cleaning.

Before starting, gather your supplies: a spray bottle of 3% hydrogen peroxide, gloves, goggles, a mask, a scrub brush, clean cloths, and plastic sheets to protect nearby areas. Always ensure good ventilation while cleaning to avoid breathing in spores.

Spray the hydrogen peroxide directly onto the moldy area, coating it evenly. Let it sit for at least ten minutes to give it time to break down the mold. You may notice bubbling — that’s a sign it’s working to lift and kill spores deep within the surface.

After soaking, scrub the area thoroughly with a brush to remove residue, then wipe it clean with a dry cloth or sponge. If the mold persists, repeat the process until the surface looks completely clean.

Once done, make sure the area dries fully. Use fans, cloths, or a dehumidifier — moisture left behind can cause mold to regrow quickly.

To prevent future mold growth, fix leaks, improve airflow, and keep humidity levels below 60%. You can also use mold-resistant paint or add ventilation in problem areas like bathrooms and basements.

Finally, never mix hydrogen peroxide with bleach or vinegar, as this can release harmful fumes. With care and consistency, you can keep your home clean, safe, and mold-free.