How to Kill Shower Mold


Showers are common places to see mold growth. Mold thrives in showers because of the excessive moisture and lack of ventilation. Mold makes your shower look dirty and unattractive. Furthermore, mold can cause health problems such as coughing, wheezing, difficulty breathing and nasal congestion. It is important to kill shower mold, not only to get your shower looking clean again but also for the health of you and your family. You can kill mold in the shower by using natural products, or you could utilize commercial cleaners and chemicals to kill the mold.

Things You'll Need

  • 2 teaspoons tea tree oil
  • Water
  • Spray bottle
  • 20 droplets grapefruit seed extract
  • White distilled vinegar
  • 1 cup borax powder
  • Scrub brush
  • Clear ammonia
  • 1 cup bleach
  • Dry rags

Natural Methods

  • Combine 2 teaspoons of tea tree oil with 2 cups of water in a spray bottle. Shake the bottle well, and spray the mixture into the molded shower. Allow the mixture to penetrate the surface without rinsing. The odor of this mixture is very powerful but will go away in a few days, along with the mold.

  • Put about 20 droplets of grapefruit seed extract into a spray bottle with 2 cups of water. Shake well and spray into the molded shower. Again, do not rinse the product from the surface area.

  • Fill a spray bottle with some white distilled vinegar. Spray the molded area without rinsing to kill the mold.

  • Mix 1 gallon of warm water with 1 cup of borax powder. Apply the mixture to the molded shower using a scrub brush. Work the mixture into the molded area by scrubbing forcefully. Wipe away the loosened mold with a dry rag. Do not rinse the borax from the shower. Allowing the remnants of the solution to penetrate the surface will prevent mold from growing there in the future.

Non-Natural Methods

  • Open the bathroom windows and turn on the exhaust fan. This will reduce exposure to fumes emitted from the chemicals and the mold.

  • Make a solution of 50 percent water and 50 percent clear ammonia in a spray bottle. Spray the molded shower with the solution. Allow the ammonia solution to penetrate the area for a few hours. Rinse with clean water, and dry with a towel.

  • Combine 1 gallon of warm water with 1 cup of chlorine bleach if you would rather not use ammonia. You can also use oxygen bleach in place of chlorine bleach if you have colored grout or a shower surface that may be damaged by bleach. Oxygen bleach is safe on colors.

  • Scrub the shower with the bleach solution. Wipe away the loosened mold without rinsing the bleach off the shower. Again, allowing the solution to penetrate the shower surface will prevent future mold growth.

Tips & Warnings

  • Wear rubber gloves when using chlorine bleach or ammonia. They can irritate the skin.
  • Never combine bleach with ammonia for cleaning. This can produce harmful fumes that are dangerous to your health. Borax powder is toxic if swallowed. Use caution when children or pets are nearby.

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