Air ducts over time will collect dust and hair in them especially if you own furry pets like dogs and cats. Outside allergens like pollen and other air pollutants can also collect in them. This dust will come out when the heating or cooling system is turned on, which means you will be breathing in whatever has collected in them.
The allergens in this dust can cause upper respiratory allergy issues such as sneezing, congestion, coughing, and headaches. If condensation or dampness collects in the ducts mold can also form. Mold in air ducts can be very costly to not only your bank account but to your health as well.
