Signs of Mold in a Furnace
Mold in the furnace can become apparent when the blower pushes air throughout the home. A mildewy smell is a great indicator of the presence of mold.
When residents of a home develop allergic symptoms involving the respiratory system such as cough, congestion, sinus infection, asthma, and bronchitis, and no other source of mold is visible, check the furnace.
Nervous System Symptoms
People suffering from unexplained headaches, decrease in attention span or memory, difficulty concentrating, or dizziness, should have their furnaces checked for mold contamination.
Other Physical Symptoms of Mold Exposure
People suffering from other physical symptoms of mold exposure should also have their furnaces checked for mold. These symptoms include skin rash, itchy eyes, fatigue, and a general unwell feeling that disappears when leaving the house.
Visible Signs of Mold
Check the furnace, for black, gray-brown, gray-green, or white-and-orange spots. Pay particular attention to the insulation, condensers, cooling coils, and drip pans of furnaces and air conditioners, as well as ductwork.
A professional can check and clean these for you.
Check furnace filters regularly and replace them at the beginning of each season to reduce the amount of mold spores growing in the furnace area.