Signs of black mold in air vents

by | May 27, 2022 | Mold Advice & Tips

Black mold (also known as stachybotrys chartarum and aspergillus) in air vents is a sign of a serious problem.

It can cause serious health problems, including respiratory issues and many other issues. It’s especially dangerous to people with immune, asthma, or respiratory problems.

Some people may be able to see black mold growing on the surface of the air vent, while others may not. It’s important to know what to look for so that you can get rid of it before it spreads.

If you notice any of these signs, it could mean that it may be growing in the vents or ductwork in your home.

Visual Clues

Black mold often looks like dark or even light or rust spots or patches on or in air vents. Areas tend to discolor over time, making them look dirty and dull even when they aren’t particularly dirty at all.

It can grow inside your refrigerator coils when you clean them out and notice white patches on them when they are turned off but not unplugged yet (mold grows best in moist environments).

If you see dark spots on filters — especially if they’re damp — then this could indicate that you have a problem with black mold in your home’s HVAC system.

If you see black mold growing on your air vents or pipes, this is a sign that there is probably more in the ductwork underneath.

Musty Smell

If you can smell a musty odor coming from your air vents, then you may have a problem with mold.

This odor tends to become stronger when the air conditioner is turned on because it increases humidity levels inside your home. The smell can be quite strong and may linger for quite some time.

Foul-smelling water dripping from the ceiling near your air conditioning unit (this is a sign that there’s mold growth inside this component as well).

Mold on Walls and Ceilings

Mold spores will sometimes fall from the ceiling or walls into your ducts and find their way into the air vents. You may see mold growing in these areas as well as other spots around your home where moisture has built up over time.

This includes basements and crawl spaces where there is no ventilation at all!

Health Issues

You have asthma and it flares up more often than it usually does..

Persistent coughing and sneezing symptoms in household members who spend a lot of time in particular rooms in your house — especially if these symptoms don’t go away after you’ve cleaned up any visible signs of mold growth.

Plants Dying Near Air Vents

If plants near your air vents are dying or falling over easily, this could be a sign that there is moisture buildup near them causing them to wilt away over time.

This happens because plants need plenty of fresh air to stay healthy and thrive, which they cannot get when there is excessive moisture nearby, hindering their growth potential!

The best thing you can do is call a mold or HVAC professional to inspect your system and make sure everything is working properly.

If you need a professional mold inspector to come inspect your ducts, please call me for a free consultation at 760-818-6830.


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