Why Return Air Duct-Work Cleaning?
A typical HVAC duct system consists of a supply network of ducts to carry conditioned air from the furnace or A/C unit (air handler) to various parts of a home/building, and a return branch that brings used air back into the air handler to be conditioned again. Unlike supply airflow, which is filtered & conditioned, the air drawn into a return branch is laden with dust, pollen, fibers, bacteria, mold spores, dander, etc., which adhere to the duct walls and severely build-up over time. Temperature & humidity changes, vibrations (from walking, stomping, door slamming, etc) often cause debris detachment, which affects air filter’s performance or integrity, and thus the HVAC unit in various ways. Cleaning the return air duct-work along with the HVAC unit may boost energy/operational savings (up to 30%), provides a much higher level of pollutants removal and hence enhanced indoor air quality and better yet, it guarantees increased air filtration efficiency as well as equipment lifespan.
