Standard way of cleaning air ducts is the common question from new home owners and not only. How to clean air ducts correctly and what to expect from air duct cleaning company? Technically this question is more about quality of the process. In order to find the answers you need to know the general conception of cleaning the ducts. All the systems have return and supply sides to recirculate the air in your house, they require alternate cleaning. All supply vents that blow hot or cold air in the house come from supply main duct (line). Some... read full review »