High QualityThe Air Extractor Is Made Of High Quality Metal, Not Easily Deformed, Has Excellent Workmanship, Durable Frame And Long Service Life. Fan SpecificationsVoltage 220-240V , Power 40W, Airflow 600M/H, Speed 2800 R/Min. For Indoor Use In Environments With A Maximum Temperature Of 70C. High Efficiency It Is Durable And Has A Built-In Copper Motor With Thermal Protection For Continuous Operation. Efficient And Extremely Quiet Ventilation To Quickly Remove Humidity And Odors. Easy To UseThe Fan Can Be Installed In All Types Of Buildings And Is Suitable For Rigid Or Flexible Pipes. Applications Home Applications - Help Increase Airflow In Ventilation System To Remove Odors And Air From Bathroom And Workshop And Ventilate Basement, Attic, Kitchen, Etc. Grow Space Applications - Used As An Exhaust Fan To Bring Fresh Air Into Grow Rooms.