Lasko 20 in. 3 Speeds Box Fan in Gray with Weather-Shield Design for Window Use, Energy Efficent, Carry Handle, Steel Body B20540 - The Home Depot
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Signal window fan - The Historic District
Amazon.com: Comfort Zone CZ319WT 9" Twin Window Fan with Reversible Airflow Control, Auto-Locking Expanders and 2-Speed Fan Switch, White : Home & Kitchen
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