ductdog.com/free-air-duct-cleaning-guide/

The home heating and a/c system in your home works by moving air from your consumption return to the registers in each of the areas in your house. This system needs to be kept and maintained tidy or they come to be contaminated with mold. mites, dirt and particles. These pollutants can cause allergies as well as illness. Duct Dog supplies duct cleansing and repair service solutions, including clothes dryer vent cleaning, repair, as well as substitute to the Charlotte, NC location.