Feature: 1. [Eliminate Odors] Designed to eliminate odors and chemicals from grow tents and hydroponic chambers, so you can use it with confidence. 2. [Multipurpose] Can be used as a greenhouse exhaust, can also be used as a blower or exhaust fan, and the speed is 2900RPM, the power is 35W. 3. [Ducted Fan System] Designed to ventilate the hydroponic grow tent, promote heating and cooling, circulate freshness air and exhaust. 4. [Stable Performance] With strong wind, strong motor, built in thermal protector, small size, smoothed operation, low vibration, higher pressure and airflow. 5. [Widely Application] Suitable for amily residences, KTV, restaurants, offices, laboratories, basements, swimming pools, grow tent, hydroponic, greenhouse, etc. Specification: Item Type: Inline Duct Fan Material: PP Voltage: 110-240V Product Size: Approx. 300 x 200 x 190 mm / 11.8 x 7.9 x 7.5 in Orifice Diameter: Approx. 10cm / 4in Input/Frequency: AC110-240V 50/60Hz Power: 35W Speed: 2900RPM Airflow: 121CFM Noise: 28dB Power Cord Length: Approx. 1.3m / 4.3ft Fan To Controller Cable Length: Approx. 2.5cm / 1in Application: Family residences, KTV, restaurants, offices, office buildings, shopping malls, hotels, moxibustion therapy smoke exhaust, laboratories, computer rooms, chess and card rooms, gymnasiums, beauty salons, fitness clubs, basements, swimming pools, environments that require ventilation Weight: Approx. 2335g / 82.4oz. Package List: 1 x Ventilation Exhaust Fan6 x Screw6 x Rubber Plug1 x Manual Note: Before starting the machine, please confirm:1. The equipment is firm and the wiring is correct.2. Safety guards have been properly installed.3. Any installation residue that could be sucked in by the fan has been removed and the ducts connected to the fan have been cleaned.4. The ground wire is connected correctly.5. Electrical safety devices are properly connected and adjusted to the correct position.6. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.