Discovering mould in your home is concerning, and while there are various methods to kill it, it's crucial to understand that eliminating visible mould doesn't always resolve the underlying issue. Many treatments lack long-term efficacy, leading to recurrence. Additionally, if mould has penetrated porous materials, physical removal may be necessary. Engaging professionals, such as Mould & Hygiene Solutions, is advisable before attempting DIY solutions.
What Can I Buy That Kills Mould?
Before selecting a mould-killing solution, remember that once these treatments dry, surfaces can become susceptible to mould regrowth. Addressing extensive infestations effectively often requires professional intervention. If you choose to proceed with DIY methods, ensure you use appropriate personal protective equipment (PPE), including:
- Respirator or Disposable P2 Face Mask
- Disposable Gloves
- Eye Protection
- Skin Protection (e.g., hazmat suit)
Common Mould-Killing Solutions
Vinegar
Vinegar is a popular household remedy for killing mould due to its affordability and relative safety. Its acidic nature disrupts mould growth and reproduction.
How It Works:
- Acidic Nature: White vinegar contains acetic acid (5–8% concentration), creating an environment that damages mould's cellular structure, effectively killing it and preventing spore spread.
- Antimicrobial Properties: Vinegar has natural antimicrobial qualities that kill mould.
- Moisture Reduction: While vinegar doesn't dry surfaces, it helps remove biofilm, reducing materials mould uses as a food source.
Eucalyptus Oil
Eucalyptus oil possesses natural antimicrobial and antifungal properties that can kill mould.
How It Works:
- Antifungal Properties: Compounds like cineole (eucalyptol) in eucalyptus oil have strong antifungal properties, which can kill mould.
- Antimicrobial Action: The oil also kills bacteria and other microorganisms that often accompany mould, reducing the food source for mould growth.
Hydrogen Peroxide
Hydrogen peroxide is a strong oxidising agent that can be harmful to humans; proper PPE and adherence to safety guidelines are essential.
How It Works:
- Oxidative Action: Hydrogen peroxide (H₂O₂) releases oxygen molecules upon contact with mould, damaging cell walls and effectively killing it by breaking down its proteins and DNA.
- Antimicrobial Properties: Acts as a disinfectant, killing both mould and bacteria, reducing the food source for mould proliferation.
- Foaming Reaction: The foaming reaction when hydrogen peroxide contacts organic material helps lift mould and debris from surfaces, facilitating easier cleaning.
Bleach
Bleach is a potent solution for killing mould but is not recommended for porous surfaces.
How It Works:
- Breaks Down Cell Walls: Sodium hypochlorite, the active ingredient in bleach, disrupts mould cell walls, leading to their destruction.
- Sanitises and Disinfects: Bleach eliminates mould and disinfects the area by eradicating bacteria and other microbes that may coexist with mould.
Sunlight
Mould thrives in dark environments; exposing affected items to sunlight can help kill mould.
How It Works:
- Ultraviolet (UV) Light: UV rays in sunlight penetrate and damage mould cells, weakening their structural integrity over time.
- Heat: Sunlight generates heat, drying out surfaces. Mould thrives in moist environments; reducing moisture makes conditions less hospitable.
- Anti-Microbial Effects: Sunlight has mild antimicrobial properties, inhibiting the growth of bacteria and fungi that support mould growth.
Conclusion
While these methods can kill mould, they may not resolve extensive infestations or prevent recurrence. If mould has penetrated the substrate, complete eradication is challenging. In such cases, it's advisable to consult professionals like Mould & Hygiene Solutions, who offer free inspections and tailored solutions.
