Do you ask yourself, why do I have to dust my house every week? The answer is simple. Your ductwork system on your HVAC system may not be installed correctly. You may have to many leaks. I have talked in other videos about air leaks in ductwork, here I do a demonstration on leaks the bypass the filter.

The furnace filter is the same as the air conditioner filter if you have a forced air split system. A small amount of air leakage is acceptable, however, to much affects the pressure which will affect the amount of the air delivered to the conditioned space. With a return ductwork air leak that is after the filter, the air isnt filtered so dust accumulates in your house compared to the filter.