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For mould to grow fast, it needs an environment rich in moisture and organic material, and temperatures between 0 and 50 degrees Celsius. The heating, ventilation, and air conditioning (HVAC) system can provide such conditions unless moisture and “mould food” are prevented from accumulating in the system. Here are essential tips to prevent mould in HVAC ducts:
If the drain pans are not sloped and cleaned regularly, standing water won’t be able to drain through the deep seal trap. Eventually, it will accumulate in the drain pans. Then, the water and microbes in the drain pans will result in mould growth in the HVAC ducts.
Wet and dirty air filters are inefficient at trapping mould spores and other contaminants. These particles will contaminate the HVAC system if the filters aren’t changed on a regular basis, usually once a month.
HVAC mould inhibitors can prevent mildew and mould growth in HVAC systems. The inhibitor should be applied to all the components of the heating and cooling unit following the manufacturer’s instructions.
Before applying the mould inhibitor to an HVAC system, it must first be treated with a disinfectant that is labeled for use in HVAC systems.
Some ducts in the HVAC system may harbor large amounts of moisture and mould. The HVAC system must be checked to find which ducts are the most affected. Cleaning or replacing ducts and components — when necessary — is also important.
Air intakes that are near areas where organic materials accumulate will transport microbes and contaminants into the HVAC system. The areas below air intakes should be cleaned by first moving the dumpsters and then removing standing water, bird droppings and other debris.
To sum up, preventing mould in HVAC systems is all about reducing the moisture and humidity levels in the home. The less moisture there is in the home, the less mould will be able to grow. But, mould can still grow inside HVAC ducts even when all prevention measures are followed.
If that happens, our teams of restoration technicians are ready to assist any home or property owner with mould removal. The PuroClean team stands ready to provide restoration services to any property affected by mould damage.