A muggy stink is often the first warning of mold in air ducts or in the ventilation system.
In many cases, you will sniff it out before you can see the mold.
If you notice a musty or moldy odor that goes away when you switch off the aircon unit, that can narrow down the origin of the stink to mold in the central air conditioning. If you notice a recurring matter, usually in areas with improper ventilation or a lot of wetness, get it evaluated pronto. Mold spreads via spores, so you won’t necessarily view actual patches of mold growth around the house. By the moment you do observe a noticeable amount, infestation can be very extreme. If people or animals in your dwelling start experiencing health issues whenever the AC is on, mold inside the air ducts might be the source. If there is a vast amount of mold in or around the ventilation system, it can spread in the air, resulting in flu symptom-like issues such as headaches, nausea, irritability, scratchy throat, and tingling eyes. Mold grows in the air duct under the right conditions. There must be moisture and warm and cool temperatures. If the HVAC unit is bigger for the space you have, it can breed mold in the air ducts because of creating excessive moisture by cooling too fast. Setting your AC on an unquestionably low temperature can also lead to mold production around the vents. When the cold air from the vents reaches the warm air in the space, the temperature differentiation can lead to water formation in the air to condense on areas in and around the ducts. If there’s a lot of water that can;t dry up, it can lead to mold formation. When the ducts have gaps that let in warm air, this temperature contrast can lead to the same hitch. The mixing of cold air in the ducts and warm air in the walls can give rise to moisture production on the ducts thus giving the perfect atmosphere for mold to develop. .