How Air Conditioners Work. Air conditioners use refrigeration to chill indoor air, taking advantage of a remarkable physical law: When a liquid converts to a gas (in a process called phase conversion), it absorbs heat.
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Thompson Automotive of Harford CountyâEdgewood, MD. 1  Toyota of Harford County - Baltimore, MD At Thompson, customer satisfaction is our top priority. 2  Director sought for large non-profit headquartered in Baltimore County. 3  This position will work in Harford and Baltimore Counties.