The department of energy says as much as forty percent of the energy used for heating or cooling a home is wasted. contaminants in the system make it work harder and shorten its life. a clean system doesn’t have to work as hard, uses less energy, and saves you money while keeping you breathing clean. so it pays to get your heating and cooling system cleaned regularly. more than just duct cleaning, this involves all the components the air stream touches throughout the system. according to the national air duct cleaners association—NADCA—proper cleaning of an entire system takes technical skill and attention to detail. that’s why it’s important to find a contractor specifically trained and experienced in this type of cleaning. NADCA members have general liability insurance, are trained and tested regularly, sign on to a code of ethics, and clean and restore your heating and cooling system in accordance with NADCA standards.Learn more at breathing-clean--dot--com. find a nearby NADCA member at NADCA.com.