Comfort Zone Twin Window Fan provides quiet cooling and exhaust with 3-speed settings. Ideal for home, kitchen, bedroom, and office use. It features reversible airflow control and an expandable design. • Twin window fan with quiet setting • Reversible airflow control • 3-speed settings for customized cooling • Expandable design for easy installation • Ideal for home, kitchen, bedroom, and office • Provides airflow at 9.84 ft/sec Size: 9 inch Condition: New Without Tags opened box Comes from a smoke-free pet friendly home. Thank you for supporting my small business, It helps me support my family. I ship daily for the exception of Sunday. Questions or concerns please feel free to contact me.