VortexFlow S4 | 4 Inch Inline Duct Fan with Quiet EC Motor & Temperature Humidity Smart Controller, Without Plug, 212 CFM 8 to 6 Inch Office Provides effective ventilation to

Office Provides effective ventilation to reduce humidity and odors

it can complement smaller inline fans (e

protection type: IP44

Dust collection fittings

4 Inch Ducting Lightproof: Thick layer of Black PVC on Hon&Guan ducting prevents light leaks

VortexFlow S4 | 4 Inch Inline Duct Fan with Quiet EC Motor & Temperature Humidity Smart Controller, Without Plug, 212 CFM 8 to 6 Inch Office Provides effective ventilation toHON&GUAN Ventilation Solutions Overview Inline Duct Fan Series Description PowerDual P High performance fan for efficient airflow and cooling in large spaces. TurboFlow Snap Compact and powerful, ideal for spaces where quick and efficient air movement is needed. EcoSync (Wireless) S Smart fan with wireless control for easy adjustments and optimal energy efficiency. FlexiVent P Flexible design that adapts to various setups, providing versatile