Mold & Indoor Air QualityUK Damp & Mold Guide 2026
1 in 5 UK homes has a damp or mold problem. Mold releases spores and mycotoxins that can cause serious respiratory and health issues.
UK Mold & Health Statistics
Health Effects of Mold
Respiratory Symptoms
Coughing, wheezing, shortness of breath, and nasal congestion. Mold is a common trigger for asthma attacks.
Allergic Reactions
Sneezing, runny nose, red eyes, and skin rashes. Mold allergies are common and can develop at any age.
Infections
People with weakened immune systems may develop fungal infections. Aspergillosis is a serious concern.
Mycotoxin Exposure
Some molds produce mycotoxins linked to neurological symptoms, fatigue, and long-term health effects.
Preventing & Addressing Mold
1. Control Humidity
Keep indoor humidity below 50%. Use dehumidifiers in damp areas. Vent tumble dryers outside. Don't dry clothes indoors without ventilation.
2. Fix Moisture Sources
Repair leaks promptly. Address condensation issues. Improve insulation. Mold needs moisture to grow—remove the water source.
3. Improve Ventilation
Use extractor fans in bathrooms and kitchens. Open windows daily. Consider mechanical ventilation with heat recovery (MVHR).
4. Use HEPA Air Purification
HEPA filters capture mold spores circulating in the air. This reduces exposure while you address the underlying moisture problem.
Reduce Indoor Pollution
Our MERV-13 air purifiers capture pollutants from indoor sources. Lab-tested and whisper-quiet.
When to Get Professional Help
Consider professional mold remediation if:
- • Mold covers more than 1 square meter
- • Mold keeps returning after cleaning
- • Mold is in HVAC system or behind walls
- • You or family members have serious health symptoms
- • The source of moisture is unclear
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Frequently Asked Questions
Can mold make you sick?
Yes, mold exposure can cause respiratory symptoms, allergic reactions, and worsen asthma. Some molds produce mycotoxins that can cause more serious health effects. People with compromised immune systems are particularly vulnerable.
Do HEPA air purifiers remove mold spores?
Yes, HEPA filters capture 99.97% of particles down to 0.3 microns, including mold spores which are typically 3-40 microns. However, air purifiers don't kill mold at the source—you must address the moisture problem.
How do I know if I have mold in my home?
Signs include visible mold growth, musty odors, water stains, peeling wallpaper, and health symptoms that improve when away from home. Hidden mold can grow behind walls, under floors, or in HVAC systems.
Is black mold dangerous?
Black mold (Stachybotrys) produces mycotoxins and is considered more harmful than other molds. However, all molds should be addressed. The color alone doesn't determine toxicity—many molds appear black.
How can I prevent mold in my home?
Keep humidity below 50%, fix leaks promptly, ventilate bathrooms and kitchens, ensure good airflow, and use a dehumidifier if needed. HEPA air purifiers help but don't solve the underlying moisture issue.
Remove Mold Spores
HEPA purifiers capture 99.97% of mold spores, reducing airborne exposure.
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