Last year, right when the weather started to moderate up, I began feeling sick. Every day, I’d wake up with a headache and congestion. There were days when I was forced to call in sick to work. Since I don’t suffer dust sensitivities, I wasn’t sure what was causing it. I eventually noticed that my symptoms disappeared after I arrived at work. Once I arrived home, the stuffy nose, coughing, sneezing and sore throat would come back. I got suspicious that my air conditioning system was the cause. My health issues appeared at around the same time I lowered the control unit. I called a local Heating, Ventilation in addition to A/C contractor and busy a service call. When the professional took the air conditioning system apart, he showed myself and others the accumulation of contaminants within the inner toilings. I was shocked by the amount of dust, debris, aglae and grime on the components. There was a significant amount of mold growth. The professional explained that the hot, moist interior of the air conditioning system is the perfect environment for bacteria and other harmful microorganisms to thrive. Every time the cooling system started it up, it was spreading allergens throughout the house, and I was breathing them in. Plus, the debris restricts airflow through the system, forcing the air conditioning system to run longer, work harder and use more energy. I was playing higher than necessary bi-weekly electric bills for diminished comfort. The greater wear and tear on the air conditioning system increased the risk of malfunction. After the professional completed a thorough cleaning of all components, my health complaints went away completely. I now make sure to have my cooling system professionally diagnosed every Springtime.