How Mould Can Impact Your Health—And What To Do

Mould is more than just an unsightly growth on your walls or ceilings. It’s a hidden health risk that can cause serious issues for you and your family, especially when left unchecked. Whether it’s behind your wallpaper, under your sink, or hidden in your basement, mould can affect the air you breathe and pose significant health risks.

So, how exactly can mould impact your health, and what can you do to eliminate it? Let’s break it down.


What Is Mould?

Mould is a type of fungus that thrives in damp, warm environments. It reproduces by releasing tiny spores into the air, which can travel through your home and land on surfaces, where they begin to grow if the conditions are right. Mould can grow on virtually any surface, from wood and drywall to carpeting and insulation.

The most common types of indoor mould include:

  • Aspergillus
  • Cladosporium
  • Penicillium
  • Stachybotrys (also known as “black mould”)

While some types of mould are harmless, others can have a major impact on your health, especially when the exposure is prolonged.


How Mould Affects Your Health

Mould exposure can lead to a range of health problems, particularly for individuals with respiratory issues, weakened immune systems, or allergies. Some of the health risks associated with mould exposure include:

1. Allergic Reactions

Mould is a common allergen. Symptoms of mould allergies may include:

  • Sneezing
  • Coughing
  • Runny or stuffy nose
  • Itchy, watery eyes
  • Skin rashes

These symptoms are often worse when you’re exposed to mould for an extended period of time or when the mould spores are disturbed and become airborne.

2. Respiratory Problems

Breathing in mould spores can trigger asthma attacks and worsen chronic respiratory conditions like bronchitis or COPD. Individuals with pre-existing respiratory issues may find it even harder to breathe when exposed to mould.

3. Toxic Mould Syndrome

Some types of mould, such as black mould (Stachybotrys), can produce mycotoxins—poisonous chemicals that can affect the nervous system. Toxic mould exposure may lead to more severe symptoms, including:

  • Chronic fatigue
  • Headaches
  • Memory loss
  • Dizziness
  • Nausea

4. Weakened Immune Systems

For those with weakened immune systems—such as people with HIV/AIDS, cancer, or those undergoing chemotherapy—mould can lead to infections, particularly in the lungs.


Where Does Mould Grow?

Mould can grow in many areas of your home, especially in places with high humidity and poor ventilation. Common spots include:

  • Bathrooms (especially around showers and tubs)
  • Kitchens (under sinks or around dishwashers)
  • Basements (where moisture often accumulates)
  • Attics (where ventilation is often poor)
  • Windowsills (especially if there’s condensation)

If you’ve had any water damage (e.g., leaks or flooding), mould growth can occur within 24 to 48 hours in areas that are damp.


What To Do If You Have Mould

If you suspect you have mould in your home, don’t ignore it. Taking action early can help prevent mould from spreading and worsening health issues. Here’s what to do:

1. Identify the Problem Areas

Look for visible signs of mould, such as dark spots on walls, ceilings, and floors. Also, be mindful of any musty odors, which are often a clear indication of hidden mould growth.

2. Fix the Source of Moisture

Mould thrives in damp conditions, so the first step is to fix the source of moisture. Whether it’s a leaky pipe, poor ventilation, or flooding, eliminating the moisture is essential to stopping mould growth.

3. Clean Small Mould Spots

For small mould patches (less than 10 square feet), you can use a mixture of soap, water, and a disinfectant like bleach to clean the affected area. Always wear gloves and a mask to protect yourself from exposure.

4. Consider Professional Mould Removal

For larger mould infestations or if you suspect toxic mould, it’s best to call in a professional mould remediation service. These experts have the tools and experience needed to safely remove mould and prevent it from coming back.

5. Get an Air Quality Test

If you’re unsure about the extent of the mould problem or if you can’t find the source, it’s a good idea to schedule an air quality test. Professionals can assess the mould spore count in the air, pinpoint potential hidden areas of mould growth, and provide advice on how to deal with it effectively.


How BreathWise Can Help

At BreathWise, we specialize in mould inspections and environmental consulting. Our certified experts will:

  • Conduct a thorough visual inspection of your home or office
  • Use state-of-the-art equipment to sample air and surfaces for mould spores
  • Provide you with a detailed report and actionable next steps for mould removal
  • Guide you through the remediation process to ensure mould doesn’t return

Conclusion: Mould Isn’t Just a Cosmetic Problem

Mould can have a profound impact on your health and the integrity of your home. If you suspect mould in your living or working environment, don’t wait until it worsens. Reach out to BreathWise for professional mould inspection and air quality testing. We’ll help you identify and eliminate mould, ensuring a healthier, safer indoor environment for you and your family.



Concerned about mould in your home or office? Schedule an Inspection with BreathWise today!