Just like your lungs are an important connection to the rest of your respiratory system, your home’s ductwork, or air ducts, are importantly connected to your heating, ventilation, and air conditioning (HVAC) system. For your HVAC system—and your lungs—to perform at peak level, the numerous airways need to be open and clear. All in the name of breathing properly.

The sound of a well-maintained heating, ventilation, and air conditioning (HVAC) system is like a lullaby for a good night’s sleep. If odd sounds, such as banging, squealing, or rattling,…