Exhaust Fan 4'' 6'' 8'' Vent Inline Ventilation Tube Duct Fan Air Blower Double Speed Controller Pipe Booster Turbo Fa ,Easy to Use

-Durable plastic fan housing and blade for extremely low noise. -Removable duct ends with locking tabs for quick removal and easy maintenance. Increase airflows to help move chemicals fumes, smells and odors out of your space. -Suitable for industrial, household and horticulture ventilation applications for air clean and temperature control. -Max Ambient Temp is 45~70(122~158)