Anything that traps moisture & causes condensation will cause molds to grow; Molds will form from dust, dirt, pollen, pet dander, & other air pollutants.
In your Heating & Air Conditioning system, molds will grow in your ductworks when there is water & moderate moisture.
Inadequate ventilation will cause moisture to build up, & when moisture condenses to become water droplets & collect instead of evaporating, it becomes the best locale for molds to grow. Oversized Heating & Air Conditioning units cool small spaces too quickly & then turn off before dehumidifying the air, thus creating excess moisture. You can install a humidifier to help detach excess moisture from the atmosphere or replace your Heating & Air Conditioning plan with the correct size; Leaking ducts also cause mold growth & should be checked to get rid of them. When you walk into a room & detect a musty odor, you mold growth in your home. When you turn on your Heating & Air Conditioning system, & the odor becomes too much, then your Heating & Air Conditioning plan has mold, while other signs that suggest you have mold include irritated nose, throat, & eyeah when you walk into a conditioned room. Molds are dangerous, & you will need to detach them from your plan to have nice air quality. To get rid of the molds, you will need an Heating & Air Conditioning professional to scrub the mold & prevent it from coming back. Don’t scrub it yourself as usual detergents cannot get rid of molds. Trained Heating & Air Conditioning professionals are common with your Heating & Air Conditioning plan setup. They will take care not to mangle your unit, use the right amount of mold inhibitors, & dispose of material used to scrub safely to prevent infecting other locales.