Features: Strong Ventilations: Upgraded fully closed pure coppermotor (speed up to 2600RPM) offer fast fumes suction, ventilations, keepings the indoor air comfortable. Tight and precise constructions eliminates rattling; The centrifugals impeller provide powerful airflows and have a low noise of 50-60dB. ThickenedBlades: thickenedblades deliver more powerful and uniform air volumed, not easy to deform. It runs stably, ensuring large air volumed while reducing noise. The metal with ceramicspaintsurface is corrosion resistant, dirt resistant, oil resistant, and provide excellent strength and durability. Easy installation, suitable for kitchen, toilet, office, meeting room, restaurant, supermarket, Internet cafe, workshop, waiting hall, etc. Specifications: Material:ABS Voltage: DC12V Power:220V to 12V 1A Air Flow:82/95CFM Speed:2600RPM Size:Approx.12cm/4.72''x12cm/4.72'' Pipe Length:Approx.2meters/78.74'',4meters/157.48'' Package Includes: 1Set Ventilation Fan note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.