What Causes Mildew Around Air Conditioning Vents

If you notice black dust around your air vents this could be a sign of black mold growing within.

What causes mildew around air conditioning vents.

If there is black mold growing in your air vents you may notice a musty aroma when you run. Nobody wants moisture to turn into mold or mildew in their air ducts. You may need more duct or attic insulation in order to solve the problem. Causes of moisture around hvac vents insufficient insulation.

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. Black mold has a distinctive unpleasant musty smell. Mildew is a type of fungus that grows in damp and humid areas. In many cases you ll smell it before you can see it.

As cool air flows through the vents on hot days the moisture in the air can condense inside the air vent. Mildew can also often grow inside air conditioning vents. The black dust may be patchy and difficult to wipe off. Black dust around air vents.

If you notice a musty or moldy smell that goes away when you are not using your air conditioning or heating if they share ducts that can narrow the cause down to mold in your hvac system. Air conditioner vents can be breeding grounds for black mold. Mold in air ducts most commonly occurs when there is moisture inside the ductwork. Common causes of black mold in air vents.

Condensation forms in the coils and ducts as cool air circulates through the system creating a habitat for moisture loving mold.