“Airflow is the key to your entire HVAC system.” This seemingly obvious statement from Corey Richmond, one of our talented technicians, hit me like a lightning strike. He went on to explain how those little one-inch thick filters which cost less than $20, in most cases, are the key component to an efficiently operating air conditioner and/or furnace. It was a great reminder, and something that might just save you a lot of money and help you avoid sitting in a steamy house waiting to have your air conditioning repaired.