I am consistently worried about indoor air quality in my home. I suffer from drastic pollen irritations and am truly sensitive to dust, pollen, dander and all sorts of contaminants. If the house isn’t kept seriously clean, I deal with congestion, sore throat, itchy eyeah, sneezing and migrainesâ€¦ Vacuuming, dusting and scrubbing with disinfectant are essential but not enough. I need to take constant proactive measures. I suppose that the heating and cooling idea can be helpful or harmful. The gas furnace and cooling system both work to filter out allergens! However, if the systems are dirty, they can truly spread pollutants throughout the house. I make sure to have the heating and cooling components professionally cleaned every year. A licensed worker services the gas furnace in the fall and the cooling system in the Spring, making sure the systems are operating at peak capacity and efficiency before the start of the season. I also make the ductwork a priority. The duct idea is responsible for transfering the heated and cooled air to the vents located in every room. If there is a buildup of debris inside the ducts, such as mold, it can be introduced into the breathing air every time the gas furnace or cooling system starts up. I consistently ask the Heating, Ventilation & A/C worker to test the ducts for leaks and restricted airflow. The duct cleaning process only takes around an hour and makes a substantial difference in air quality of the home. It also promotes greater heating and cooling efficiency and superior comfort. When the ducts are working officially, the new home remains at a more consistent temperature.