070920_In-HomeAssessment_Middletown_02

Christopher Caez, a technician with the Energy Efficiencies Solutions, measures the amount of air infiltration through the blower door on July 9 in Middletown. Caez ran the blower door before and after performing air sealing to quantify how much the air sealing reduces the house’s air infiltration level. Yehyun Kim / CT Mirror

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