HVAC Maintenance: The Importance of Mould Control and Removal in HVAC Systems

19 August 2019

It’s hard to place undue emphasis on this next HVAC related topic. Exaggerations are welcome here, for airflow health, as funnelled through Heating, Ventilation and Air Conditioning equipment is an undeniably serious matter. So, what could happen if an HVAC unit is contaminated? Tainted by patches of mould, what possible effect could these furry coatings have on someone’s health?

Mould Release Respiratory Issues

That’s a lot of questions. Fortunately, there are several concise answers we can put forth. Left unmaintained, to become damp and mould-congested, tiny spores are belched out by fungal colonies. The spores become airborne, they’re caught up in an air handling unit’s currents, and they find their way into an occupied room. Breathed in by a sensitive respiratory system, a young child coughs and sneezes. An older occupant feels ill because of the contaminated HVAC air. If someone inside that property is an asthma sufferer, a life-threatening attack becomes likely. Frankly, if the spore density becomes dense enough, even a healthy individual could develop a chronic cough. Other symptoms here include itchy eyes, skin rashes, fatigue, and chronic headaches.

Protecting HVAC Systems Against Mould

Kept, dark and musty, even a low-humidity air vent can become home to a thousand times a thousand fungal spores. The dark patches grow and spread. They congest filters and corrupt equipment parts. The gear ages prematurely which is bad enough. Worse still, the tainted airflow can and probably will cause any one of the above physical ailments. At the very least, a chronic cough seems likely. A planned maintenance program will soon put a stop to these airborne invaders. First off, those contaminated filters need to be replaced. If there’s excess damp in the vents, then the source of this mould-nourishing dankness needs to be fixed, and quickly too. Skipping forward a little, there are drip pans to clean and disinfect. Yet again, these tiny system trespassers will use HVAC drip pans as their very own feeding pools, so they must be inspected regularly.

Much can be done to remedy this health-impairing environment. Simply by keeping HVAC vents and ducts dry, mould colonies lose power. They need the damp and the dark to grow. Condensation prevention measures are therefore key. Properly sealed insulation coatings are one solution, with their condensation eliminating features coming to the fore. Otherwise, if the mould has already spread, a maintenance plan’s latest inspection results will hopefully trigger a deep cleansing operation. Critically, such decisive measures must be carried out before someone complains about a newly developed breathing difficulty. And remember, mould growths spread. Those spores are looking for new breeding grounds.

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