Feature:1. Wide Application: Inline duct fan is great for growing tents, hydroponic chambers, greenhouses, basements, kitchens to improve circulation.2. Function: Vent blower fan can effectively ventilate the grow tent, transfers heat or cool to the room, circulates air, and removes odors.3. Powerful Airflow: This is a powerful ventilation blower with a fan speed of 2200/2500 r/Min and fast to cool or heat the room.4. Quiet Operation: Professionally made to ensure low noise operation, without any harm to your health and will not affect your work.5. Multi Purpose: Inline duct fan can be used as a greenhouse exhaust, and can also be used as a blower or exhaust fan.How to Use:Plug in the power to use, you need to confirm:Make sure nothing is sucked in around the fan.When installing the equipment, please ensure that all accessories are installed in place, and the structure of the fan can ensure the load caused by the full‑load operation of the fan.Before using the device, make sure that the power supply is disconnected, even if the device switch is off.The power supply unit must be equipped with a double pole switch with a distance of at least 3mm between the contacts. The dimensions and specifications sho