What should you avoid to clean moldy surfaces?

Author: Keith Herman V  |  Last update: Wednesday, October 29, 2025

Spraying bleach on surfaces can actually contribute to the spread and growth of mold, especially on porous surfaces. You should never try to clean mold off walls. The catch is bleach does have its place when eliminating mold on impermeable surfaces like glass, metal, treated wood, and plastic.

What should you not clean mold with?

Biocides are substances that can destroy living organisms. The use of a chemical or biocide that kills organisms such as mold (chlorine bleach, for example) is not recommended as a routine practice during mold cleanup.

What precautions should be taken when cleaning mold?

Put on personal protective equipment (gloves, mask, goggles) to protect your eyes, nose, mouth, and skin. Toss! Take it out! Anything that was wet with flood water and can't be cleaned and dried out completely within 24 to 48 hours should be taken outside.

What is the best cleaner for mold on surfaces?

Vinegar is a great all-around cleaner and can disinfect areas as well as kill light mold. Hydrogen peroxide is good at killing and removing stains, and can bleach items. Sodium percarbonate is good at looking and removing stains, but it can also bleach items.

Is it safe to clean mold without a mask?

When cleaning mold, you must protect yourself from mold exposure, which can have potentially harmful effects on your health. Wear an N95 mask.

How to Kill Mold With Vinegar

How long after cleaning mold is it safe?

The time you should stay out of the house after mold remediation depends on the extent of the remediation and the methods used. Typically, it's safe to return 24 to 48 hours after the remediation process is completed. This allows time for any airborne spores to settle and for the air quality to return to safe levels.

What are the 10 warning signs of mold toxicity?

Although symptoms can vary, the most common symptoms seen in people exposed to mold indoors include:
  • Nasal and sinus congestion.
  • Eye irritation, such as itchy, red, watery eyes.
  • Wheezing and difficulty breathing.
  • Cough.
  • Throat irritation.
  • Skin irritation, such as a rash.
  • Headache.

What kills 100% of mold?

Hydrogen peroxide, commonly used to disinfect wounds, is active against a wide variety of micro-organisms including mold. It acts by releasing oxygen at a rapid rate, which kills mold by oxidizing the surface and breaking down proteins and DNA.

Is it safe to clean black mold yourself?

Thus, exposure to the toxicity of black mold can cause harm to our physical health. Cleaning it yourself risks a greatly increased chance of acquiring damaging health conditions by unsettling the toxins into the air. Depending on the frequency of mold exposure, an individual's health can be severely compromised.

How do you disinfect a room after mold?

How to Properly Disinfect Your House Post-Mold Infestation
  1. Gear Up! Wear Protective Equipment. ...
  2. Use Certified Cleaning Products. Don't rely on just any cleaning product to disinfect your home post-mold. ...
  3. Dry The Affected Areas. ...
  4. Discard Contaminated Items. ...
  5. Clean Surfaces Thoroughly. ...
  6. Consider Hiring a Mold Remediation Company.

How to clean mold without spreading spores?

Use a non-ammonia soap or detergent in warm water and scrub the entire area affected by the mold. Use a stiff brush or cleaning pad on block walls or uneven surfaces. Rinse clean with water. Dry completely.

What not to do with mold?

Clean it with harsh chemicals.

Cleaning it with an unnatural chemical, such as bleach, can cause the mold to “freak out” and spread. Yes, your Clorox can take care of the situation momentarily but cleaning with such a harsh chemical can have a negative effect on your, your family, and the surface.

How do professionals clean mold?

All contaminated surfaces will be vacuumed with a HEPA vacuum to trap the mold spores while releasing clean air, unlike traditional vacuum cleaners. Next, a professional will spray and wipe down the once contaminated surface with microfiber cleaning cloths.

What is the enemy of mold?

Mold's biggest weakness? Moving air. Mold thrives on moisture and stagnant conditions, but airflow is its natural enemy. By keeping air circulating in your home, you can prevent mold from taking hold.

Which kills mold better, bleach or vinegar?

Vinegar is better at killing mold because it can work on both porous and nonporous surfaces. It also terminates molds at their roots so the mold won't return and is also safer than bleach. You can even combine it with baking soda to make it more effective.

What can you keep after mold exposure?

Here are some items that you can keep after mold removal services:
  • Electrical appliances.
  • Fabrics or clothing.
  • Nonporous items like glass, plastic, and metal.
  • Pottery, frames, and solid-surface containers.

Do you have to throw everything away with mold?

Many belongings can be salvaged with proper cleaning

The small porous stuff (such as clothing, stuffed animals, bedding, etc.) can easily be washed. You can use your choice of vinegar, bleach, Borax, tea tree oil, or whatever other cleaning agent.

Is it safe to sleep in a room after cleaning mould?

You will need to ventilate the room well as the odour is very strong. I would not sleep in the room for about 12 hrs after use and then still ensure windows are open.

Do I need a mask to clean mold?

Take steps to protect your mouth, nose, skin, and eyes when cleaning up mold. Protect your mouth and nose against breathing in mold: wear at least a NIOSH Approved N95 respirator.

What are signs of mold sickness?

If you have a mold allergy, your immune system overreacts when you breathe in mold spores. A mold allergy can cause coughing, itchy eyes and other symptoms that make you miserable. In some people, a mold allergy is linked to asthma and exposure causes restricted breathing and other airway symptoms.

Can I leave vinegar on mold overnight?

Yes, you can leave vinegar on mould overnight, though this isn't necessary as it usually takes effect after an hour. However, you can't use any type of vinegar, for mould removal you must use distilled white vinegar.

What is the best disinfectant for mold?

Based on 15+ years and thousands of jobs worth of experience, Moldman recommends RMR-86 as the clear winner. It's effective for both removing mold stains and killing mold, is relatively affordable, and can be bought online. Our runner up is Clorox Clean Up.

Can mold behind walls make you sick?

It irritates the nose and throat, which can lead to both sneezing and coughing as your body tries to get rid of the irritant. Inhaling mold spores can also trigger coughing in people with allergies or an asthma attack, for those with asthma.

What kills mold in the human body?

1. Activated Charcoal: Absorbs toxins, potentially helping to clear mold spores from your system. Take it in capsule form to absorb toxins. It's best used under medical supervision, especially after known mold exposure.

How long does it take to get sick from mold exposure?

According to the CDC, people usually experience their first symptoms within 2 to 9 hours of their first exposure. On the other hand, some people could go for weeks or months before feeling sick if their exposure is limited enough. This is why it is also important to check damp, dark areas of your home for mold.

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