Whatever is in your ductwork is what is going to be making its way into your home. This means that when you run the heater and there is hot air in your ducts, it will come through into your home. The same applies to cool air during summer. And, of course, if there is a large amount of dust and debris in your ductwork, that will also make it into your home.
So, the next time you turn on your ductwork, consider what you are going to be blowing into your home. Is it just temperature-controlled air, or are you creating a small house-sized dust storm?
If you have dusty ductwork, there is a great solution to the problem that we can offer you: duct cleaning for your HVAC in Katy, TX.