SMALL & LIGHTWEIGHT YET STRONG POWER - This mid-duct vent fan features a jet engine design with two impellers. It achieves a large amount of air and suction power (air blowing) of 12.2 cubic feet (594 m3/h). Compared to the 150φ medium duct fan of the same size, it is amazingly compact and can produce a more powerful breeze than ever before. The suction power will not greatly decrease even when the duct is extended, the installation of a backwind damper or deodorizer filter, or the paint mist filter sponge is installed. Designed to work in heavy-duty conditions and built with durable construction. The outer case is not a cheap plastic but aluminum, so it can be used for commercial or business use.e

ENERGY SAVING VENTILATION FAN - This inline duct fan has a stepless variable speed control that allows you to control airflow and noise levels from 0% to 100%. This ventilation duct uses a brushless EC motor, and the power consumption is 40 W/h when venting. It consumes approximately 2/3 of the power compared to other airflow fans sold on Amazon. When sleeping, the duct fan speed can be lowered by the controller to a level of no operation noise and vibration.

HIGH QUALITY MATERIAL - The outer case adopts a cold-rolled steel plate, which is resistant to pressure and durable. Lightweight and durable at the same time. Plastic ventilation fans are not easy to break andare durable. Booster fan blades are flame-retardant UL94V-0 grade PBT material. Can be operated at high speed without deformation. Made in Japan with heavy-duty NMB bearings to prevent shaking and extend service life

MULTIPLE USES - Ventilation fan for DIY paint booth, use for roasting meat smoke, "need filter" at home, this fan is recommended for use with health-hazardous smoke or smelly smoke. It can also be used in places such as laser processing machine exhaust, commercial ventilation fans, warehouse ventilation, underfloor air fan, dog kennel, cat toilet room, hydroponics fan, indoor smoking exhaust, simple tent for infection, isolation booths, etc