Mould is something most of us would rather not think about, but understanding its impact on your health and living environment is vital. Indoor air quality includes pollen, dust, chemical pollutants, and mould, which greatly influence whether your home environment is safe or unsafe.
If you notice any signs of mould, like visible spots or a musty smell, it’s more than just an aesthetic issue — it’s a sign that the air might not be as healthy as it should be. Continue reading as we guide you through the implications of mould growth for your indoor air quality, the risks it poses, and practical steps you can take to address it.
1. Mould Releases Spores Into the Air
Mould is a fungus that spreads through microscopic spores floating in the air, which can harm indoor air quality. Once airborne, mould spores can travel to other parts of your home and create new colonies under the right conditions. They can wreak havoc on sensitive respiratory systems, irritate allergies, and worsen asthma symptoms.
It’s essential to keep your home’s humidity levels under control. We recommend using a dehumidifier in areas prone to dampness, such as basements or bathrooms. Aim for indoor humidity levels of 30–50% to prevent prime growth conditions for mould.
2. Mould Impacts Respiratory Health
Breathing in an environment rich in mould spores is harmful to your health. Prolonged exposure can exacerbate conditions like asthma, lead to chronic sinus infections, or cause other respiratory issues. Black mould (Stachybotrys chartarum) is particularly infamous for its health risks, but even less notorious types can cause trouble. While everyone’s reaction varies, children, older people, and individuals with weakened immune systems should take extra care.
Practical Tip
Invest in an air purifier that uses a High-Efficiency Particulate Air (HEPA) filter. HEPA filters are effective at reducing airborne mould spores, creating cleaner air inside your home.
3. Mould Odours Are a Warning Sign
If you’ve ever walked into a damp basement or attic and caught that musty smell, you know what mould odour is like. That smell is a sign of volatile organic compounds (VOCs), which mould emits as it grows. While the scent itself may not directly harm you, it signals a larger issue with air quality in your home. Ignoring the source won’t make the smell or its effects disappear. It’s important that you investigate and address the source of the odour.
Check areas near leaky windows, plumbing, or poorly ventilated spaces. These are common trouble areas where mould tends to flourish. When you’re checking for mould, make sure to:
- Wear protective gear such as gloves and a mask to prevent exposure.
- Isolate the affected area to stop mould spores from spreading.
- Clean small mould patches using water and detergent or a specialized mould cleaner.
- For extensive mould growth, seek help from a professional mould remediation service.
- Enhance ventilation and lower humidity levels in your home to prevent future mould development.
4. Mould Signals Structural Issues
Mould doesn’t just grow magically; it needs water and a surface to thrive. If you’re noticing mould, it’s a clue that there might be water damage or structural problems in your home, such as an old, leaky roof. When it’s time to replace your roof, mould could play a major role in that decision.
Addressing mould at its root often means tackling critical home repairs to prevent its return. Hire a professional to inspect your home for water damage and leaks. Fix these issues promptly to protect your home’s structure and eliminate mould at its source.
5. Reduces Cognitive Productivity
Emerging research has shown that exposure to mould affects both physical health and mental clarity. Individuals working or living in environments contaminated with mould often report increased fatigue, difficulty concentrating, and memory issues.
While air quality may not be the first thing on your mind when you feel “off,” it’s worth investigating—even your work-from-home productivity could suffer due to mould-induced fatigue.
To get the air flowing, open windows regularly, especially if you work remotely or spend long hours indoors. Paired with effective ventilation, this can help you keep mould-related distractions at bay.
6. Mould Can Affect Pets Too
It’s not just people impacted by poor indoor air quality. Your furry friends could also face health complications. Dogs, cats, and other pets can exhibit signs of mould exposure, including wheezing, sneezing, and excessive scratching. For indoor pets that stay closer to the ground, exposure to areas where mould spores settle often goes unnoticed.
Practical Tip
Vacuum regularly with a vacuum cleaner that uses a HEPA filter, especially if you have pets. This reduces mould spores and pet dander, keeping your home’s air healthier for all inhabitants.
7. Professional Testing Identifies Hidden Mold
Visible mould isn’t always the full story. Mould likes to hide behind walls, inside ductwork, and under carpets. To obtain a true picture of your indoor air quality, it may be necessary to hire professionals for testing, especially if you’ve been experiencing unexplained symptoms.
Don’t rely solely on home testing kits, which can have varying degrees of accuracy. Look for a certified mould professional (often called an industrial hygienist) for thorough testing and recommendations.
8. Mould Prevention Remains the Best Remedy
It’s much easier to prevent mould than it is to deal with the consequences of active growth. Small changes in how you manage your indoor environment can make a significant difference in controlling mould. Keep in mind that mould spores exist everywhere and are impossible to remove entirely; however, limiting their growth keeps them from negatively impacting your indoor air quality.
Practical Tip
Seal any cracks in your foundation, walls, or pipes that allow water to seep in. Regular home maintenance checks can prevent small issues from growing.
9. Mould and Air Quality Interact
The impact of mould growth on your indoor air quality becomes clear when you take action against it. Poor air quality can create a feedback loop where airborne particles (like those from dust mites or mould itself) accumulate and encourage further mould growth. Disrupting this cycle starts with addressing both the visible and invisible factors of mould and air quality.
If you’ve been wondering why your indoor environment feels off or why allergies seem never-ending, mould could be part of the explanation. Just like any issue worth fixing, keeping mould away requires vigilance, routine upkeep, and practical measures. Enhance your indoor space today by prioritizing clean air and adopting healthier living strategies.
Eric S Burdon
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