What Causes Mold On My Ac Vents

There s been a mysterious slightly moldy smell in my home all summer and this morning when our window air conditioner kicked on i noticed that the odor unmistakably came from the unit. As soon as you switch your heater or air conditioner on the microscopic particles start floating and blowing out with air into the room. The air coming out of the air conditioning vents is about 20 degrees colder than the inside air so if the air inside is too humid condensation will form on the metal ducts at.

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You may also be able to see the presence of mold around drip pans air ducts and within intake vents.

What causes mold on my ac vents.

This can not only cause the evaporator coil to get dirty but can also cause mold to grow in the ductwork itself. Common symptoms and health problems caused by black mold may include. They carry air to your living spaces. The symptoms may vary from person to person and can also depend on the length of exposure and the amount of spores inhaled.

Mold in air ducts most commonly occurs when there is moisture inside the ductwork. You can see the same principle at work when you drink an icy beverage and water beads up on the outside of the glass. Mold is not just icky or gross. Mold in air vents.

Air conditioner vents can be breeding grounds for black mold. Condensation forms in the coils and ducts as cool air circulates through the system creating a habitat for moisture loving mold. The louvered metal grille that directs conditioned air from a duct into the room is called a register and mold around an air conditioning register can have several causes. As cool air flows through the vents on hot days the moisture in the air can condense inside the air vent.

Black mold in your air vents can cause a variety of unpleasant symptoms and health problems. 1 if the cold air coming out of the register is too cold compared to the room air condensate will form on the surface of the register and migrate over to the surrounding. If that moisture builds up and never gets a chance to dry out it can lead to mold growth. Cold air cannot hold as much moisture as warm air so when warm humid air comes in contact with something cold it reaches dew point and makes condensation or water.

Symptoms to watch for. When mold grows within the central heating cooling and ventilation system there are high chances that every room connected to the vents receives generous amounts of mold spores. But if air ducts leak disconnect in a dirty non living area like your attic or crawl space they draw in the surrounding air which is usually filled with dirt dust and mold spores. One of the first signs that black mold is growing in your air vents is a distinct musty mildew like smell in specific rooms or even throughout your entire home.

Common causes of black mold in air vents. Setting your ac on a very low temperature can sometimes lead to mold around the vents 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.