What happens chemically when you spray bleach on mold?

Mold in the house is more than an eyesore; This poses significant health risks, especially for those with respiratory problems, allergies or weakened immune systems.

While using bleach may seem like a quick fix to remove mold, this common solution can make things worse. In a post, Ava Abrams, an Australian alternative healthcare promoter, warns against this practice. She says, “Never put bleach on mold. If you put bleach on mold, you’re creating one of the most toxic mixtures (sic) on the planet.”

“While bleach may seem like a quick fix, using it on mold can create a toxic environment and ignore the root of the problem,” explains public health intellectual Dr. Jagdish J, indianexpress.com.

What happens chemically when you spray bleach on mold?

Dr. Jagdish says, “When bleach, a solution of sodium hypochlorite, comes into contact with mold, a complex chemical reaction occurs. Bleach is primarily effective against bacteria and viruses, but mold is a fungus. While bleach can kill some surface mold, it fails to penetrate. Porous materials such as wood and drywall, leaving the mold’s roots intact for regrowth.”

In addition, he says that mixing bleach with certain types of mold or common household cleaning agents can produce toxic gases. For example, mixing bleach with ammonia, a compound sometimes released by mold, creates chloramine gas. This noxious gas can cause breathing problems, chest pain and irritation to the eyes, nose and throat.

Mixing bleach with organic matter, such as cellulose found in wood, can also release volatile organic compounds (VOCs), which can cause lung irritation and long-term health effects.

Potential health risks

The potential health risks of using bleach on mold are numerous. According to Dr Jagdish these are:

Respiratory problems: Inhalation of bleach fumes or toxic gases produced by its chemical reaction can cause lung irritation and respiratory system. This can be particularly dangerous People with asthma or other respiratory conditions.

Skin and eye irritation: Bleach is a corrosive substance that can cause skin burns and eye irritation upon contact. It is important to wear protective gear such as gloves and goggles when handling bleach and to avoid splashing or splashing near your face.

Chronic health concerns: Long-term exposure to bleach fumes and the byproducts of its reactions with mold is associated with respiratory problems, neurological problems, and an increased risk of some types of cancer.

Bleach is a corrosive substance that can cause skin burns and eye irritation upon contact. (Source: Freepik)

A safer and more effective option

Thankfully, there are many safe and effective alternatives to bleach to remove mold, says Dr. Jagdish. These are:

Vinegar: The acidity of white vinegar can kill many types of mold. Mix equal parts of water and vinegar and apply on the affected area. Allow it to sit for an hour before scrubbing and rinsing thoroughly.

Baking Soda: Baking soda is a natural fungicide and deodorizer. Make a paste of baking soda and water and apply it to the mold. Let it dry, then scrub and rinse.

Hydrogen Peroxide: Hydrogen peroxide has antifungal and antibacterial properties. Rinse it with water and spray it on the mold. Let it sit for 10-15 minutes before scrubbing and rinsing.

Tea Tree Oil: This essential oil Has powerful antifungal properties. Mix a few drops with water and spray on the mold. No need to rinse.

Disclaimer: This article is based on information from the public domain and/or experts we spoke to. Always consult your health practitioner before starting any routine.


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