If that moisture builds up and never gets a chance to dry out it can lead to mold growth.
What causes mold in ac vents.
As cool air flows through the vents on hot days the moisture in the air can condense inside the air vent.
Condensation forms in the coils and ducts as cool air circulates through the system creating a habitat for moisture loving mold.
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.
Common causes of black mold in air 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.
However just because mold is not dangerous when present on the vents it does not mean mold inside of the vents can t cause occupants in the home harm.
Symptoms to watch for.
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 the hvac ductwork while the mildew on the hvac vents does not present an immediate health risk the possibility exists for an underlying issue within the ductwork itself.
Black mold in your air vents can cause a variety of unpleasant symptoms and health problems.
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.
Mold in air vents.
You may also be able to see the presence of mold around drip pans air ducts and within intake vents.