What Causes Mildew On Air Conditioner Vents

As cool air flows through the vents on hot days the moisture in the air can condense inside the air vent.

What causes mildew on air conditioner vents.

If that moisture builds up and never gets a chance to dry out it can lead to mold growth. Mildew is a type of fungus that grows in damp and humid areas. Air conditioning systems trap tiny particles that settle in the filters over time and cause mildew growth when exposed to moisture. Occasional condensation on a c ducts is not a problem but keeping an eye on the situation is recommended.

Either way it s supposed to make you comfortable and that s not possible if there s an unpleasant musty smell coming out of your vents. When that moisture meets dust in the evaporator coil or ducts mold mildew can form. Persistent ductwork sweating may eventually lead to water damage. Condensation forms in the coils and ducts as cool air circulates through the system creating a habitat for moisture loving mold.

Mold in air ducts most commonly occurs when there is moisture inside the ductwork. Condensation can then drip down and cause moisture on ceilings and walls. That smell is mildew and it indicates that there has been. When the cool air from the vents meets the warm air in the room the temperature difference can cause moisture in the air to condense on surfaces in and around the vents.

You can see the same principle at work when you drink an icy beverage and water beads up on the outside of the glass. If you live in a wet climate such as a southern state or tropical country it is likely that you ve had to clean mildew off your bathroom walls basement floorboards or even from behind your wallpaper. Common symptoms and health problems caused by black mold may include. Air conditioning vents can transport mildew to any room in your home.

Air conditioner vents can be breeding grounds for black mold. Short cycling occurs when an oversized air conditioner blasts your home with cold air then shuts down quickly. If your air conditioner s filter is dirty and clogged this may result in your ac smelling musty. And the sooner the better.

This happens with your air conditioner because when you have cold air and cold vents but hot air on the outside condensation will form. Black mold in your air vents can cause a variety of unpleasant symptoms and health problems. The symptoms may vary from person to person and can also depend on the length of exposure and the amount of spores inhaled.