Abstract: A refrigerator with a built in air cleansing system. The system includes a plurality of intake vents provided at spaced locations in the refrigerator housing and exposed to the environment, a plurality of disparate filters positioned in the refrigerator housing, a plurality of exhaust vents provided in the refrigerator housing at spaced locations and exposed to the environment, intake ducting extending within the housing from the intake vents to the filters, exhaust ducting extending within the housing from the filters to the exhaust vents, and a fan positioned in the housing and operative to draw environmental air in through the intake vents, route it to the filters through the intake ducting, and route the filtered air through the exhaust ducting to the exhaust vents for discharge to the environment.