Usage Tips:Features: The inline-duct fan is a must-have for anyone looking to improve their indoor-air . With a low noise-level, it effectively removes odors and moisture from basements, bathrooms, kitchens, and attics.Made with materials, including a pure-copper motor and a durable painted-finish, this ventilation fan is built-to last. Its compact size and easy installation-make it a convenient addition to any room.Designed for at-home growers-and anyone who wants to improve their indoor-air , this exhaust fan is suitable-for a variety of-spaces and-needs.Whether you're growing plants-indoors or just need to improve your home's ventilation, the inline-duct fan is the perfect solution. Use it in your basement, bathroom, kitchen, or attics for improved-air and comfort.Easy to install, suitable for kitchen, toilet, office, meeting room, restaurant, supermarket, cinemas, Internet-cafe, workshop, waiting hall, etc.Specifications: Color:Black /White(Random color)Size:Approx.7.3x10cm/2.87x3.93inchSize:Approx.15x15cm/5.9x5.9inchSize:Approx.15x19.6cm/5.9x7.71inchRated-voltage: 220V.Input power: 20WProduct model: ZFD-100Air volume: 140m3/hRated-speed: 2800r/minutesPackage Includes: 1x Exhaust Ventilation Fannote: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item.Thanks for your understandings.