How to get rid of black mold

Get rid of black mold.

Mold is a common problem in many homes. There are some preventive steps one can take; however, action is required as soon as it’s spotted. In This DIY guide, we will show you how to kill and get rid of black mold with ordinary household products such as bleach, ammonia, baking soda, hydrogen peroxide, vinegar, grapefruit seed extract, tea tree oil and borax.

Topics covered
  • Safety precautions
  • Does bleach kill mold?
  • Does ammonia kill mold?
  • Does grapefruit seed extract kill mold?
  • Does borax kill mold?
  • Cleaning solution comparison table

Safety precautions

Following the correct safety guidelines and procedures in essential while getting rid of mold. Not only can the spores be detrimental to your health, but it could also spread to other parts of your home.

Size of the infestation: If the infestation area is larger than 10 square feet, then it might be better to call in a remediation company to have it professionally removed. A problem of this size can release a tremendous amount of spores into the air, especially when disturbed, which you will not only breathe in but also further spread throughout your home.

Wear protective gear: Wear an N-95 respirator mask to prevent breathing in spores. Be sure to wear rubber gloves and a good pair of wrap-around safety glasses if you choose to use bleach or ammonia as your mold-killing solution.

Elimination of mold spores: You can minimize the spreading of mold spores by cleaning the door of the room in which you will be cleaning. Also, open all the windows in the room for some fresh air circulation. As an extra precautionary step, you could run a HEPA filtered air purifier during the cleaning process and vacuum the area with a HEPA vacuum cleaner afterward.


Does bleach kill mold?

Bleach is one of the most widely used cleaning agents and kills every type of virus and bacteria upon contact thanks to its active ingredient chlorine. Just keep in mind that it only works on non-porous surfaces because the chlorine can’t penetrate the tiny pores on porous materials where mold roots dig in.

Pros: Very affordable and easily available while killing all viruses and bacteria on non-porous surfaces.

Cons: Highly toxic to humans, animals, and the environment while only killing mold on non-porous surfaces. It bleaches dark-colored clothes and fabrics.

Use bleach to get rid of mold on: Light-colored clothes & fabrics and non-porous surfaces such as tiles, toilets, painted drywall, bathtubs, finished wood.

Warning: Bleach causes overpowering toxic fumes. It is therefore strongly recommended to open as many windows as possible for ventilation while working with it. Also, wear a respirator, protective gloves, and eye protection. More importantly, never mix bleach with any other ingredients, especially ammonia or vinegar, because it creates highly toxic fumes.

How to get rid of black mold with bleach

  • Mix bleach with water to a ratio of 1:10.
  • Apply the mixture to a non-porous moldy surface with a sponge or cloth and rub until it comes off.
  • Wipe the surface area clean.

Does ammonia kill mold?

Ammonia is a colorless liquid with a strong, pungent smell and is highly toxic. It’s an excellent disinfectant, and just like bleach, it’s only useful for mold on non-porous surfaces such as glass, bathtubs, tiles, and countertops.

Pros: Affordable, easily available, and kills all known viruses and bacteria upon contact. 100% effective at killing all mold species on non-porous surfaces.

Cons: Extremely toxic to humans, animals, and the environment. It only kills mold on non-porous surface areas.

Use ammonia to get rid of mold on: Non-porous surfaces such as tiles, toilets, painted drywall, bathtubs, finished wood.

Warning: Work with ammonia in a well-ventilated room and wear protective gloves, eye protection, and a respirator. Most importantly, do not mix ammonia with bleach because it creates highly toxic fumes.

How to get rid of black mold with ammonia

  • Fill a spray bottle with a 50/50 water and ammonia mixture.
  • Spray onto the desired non-porous surface and allow 10 minutes to soak.
  • Spray again and scrub with a brush or rub with a cloth/sponge.
  • Wipe the surface area clean.

Does grapefruit seed extract kill mold?

Does grapefruit seed extract kill mold

Grapefruit seed extract is one of the most natural and safest items on the list. It isn’t exactly cheap, but its citric acid content is great at killing mold on all surfaces while disinfecting and deodorizing at the same time.

Pros: Easily available, 100% natural and non-toxic.

Cons: Costs more than the other cleaning solutions mentioned on this page.

Use grapefruit seed extract to get rid of mold on: All porous and non-porous surfaces and materials.

How to get rid of black mold with grapefruit seed extract

  • Mix 10 drops of grapefruit seed extract per cup of water.
  • Pour the solution into a spray bottle.
  • Spray the solution onto the desired area and let it soak in for 10 minutes.
  • Scrub the infected area with a small brush until its clean.
  • Repeat the process if necessary until all mold has been removed.

Does borax kill mold?

Does borax kill mold?

Borax is a white-colored natural mineral powder. It’s a great herbicide, pesticide, insecticide, disinfectant, deodorizer, and mold killer. The powder is cheap and can usually be found in the laundry detergent section of most supermarkets.

Pros: Easily available. 100% natural and relatively non-toxic (unless swallowed).

Cons: Borax can irritate the skin of sensitive people, so wear rubber gloves just in case.

Use borax to get rid of mold on:
All porous and non-porous surfaces and materials.

Important:
Never mix borax with bleach because it produces highly toxic fumes.

How to get rid of black mold with borax

  • Mix 1/2 teaspoon of borax per cup of water.
  • Pour the solution into a spray bottle. Add some white vinegar for extra strength
  • Spray the solution onto the desired area and let it soak in for 5 to 10 minutes.
  • Scrub the infected area with a small brush or cloth until its clean.

  • Cleaning solution comparison table

    When comparing the various solutions covered in the above list you will notice that the most toxic items are the least effective while the environmentally friendly ones work best.

    Item Ideal Surface Areas Pros Cons
    Bleach Non-porous surfaces:
    Glass, counter tops, bath tubs and tiles.
    • Easily available
    • Highly effective on non-porous surfaces.
    • Kills 100% of all bacteria and viruses.
      • Highly toxic
      • Doesn’t penetrate porous surfaces to eradicate roots.
      Ammonia Non-porous surfaces:
      Glass, counter tops, bath tubs and tiles.
      • Easily available
      • Highly effective on non-porous surfaces.
      • Kills 100% of all bacteria and viruses.
        • Highly toxic
        • Doesn’t penetrate porous surfaces to eradicate roots.
        Baking Soda All surfaces
        • Easily available
        • Highly effective on all surfaces.
        • Non-toxic.
        • Kills 82% of all bacteria and viruses.
        • Deodorizes.
          Hydrogen Peroxide All surfaces
          • Easily available
          • Highly effective on all surfaces.
          • Non-toxic (unless swallowed).
          Grapefruit Seed Extract All surfaces
          • Easily available
          • Highly effective on all surfaces.
          • Non-toxic.
          • Deodorizes.
          • Slightly more expensive than other solutions.
          Borax All surfaces
          • Easily available
          • Highly effective on all surfaces.
          • Kills 100% of all bacteria and viruses.
          • Non-toxic (unless swallowed)
            • Can irritate skin of sensitive people.
            Tea Tree Oil All surfaces
            • Easily available
            • Highly effective on all surfaces.
            • Non-toxic (unless swallowed).
            • Slightly more expensive than other solutions.
            • Have to leave it to soak in longer than other solutions.
            White vinegar All surfaces
            • Easily available
            • Highly effective on all surfaces.
            • Non-toxic.

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