Can you switch this fan from intake to exhaust?

Yes, this unit can switch from intake and exhaust. It consists of two ventilation grills (inside and external) and a telescopic air duct. The inner grill is produced from high-quality ABS plastic and is equipped with a dust filter. Inside the grille, a small motor is installed for intake or exhaust of air. The direction of air flow can be easily reversed by turning the motor 180°. If you have any further questions please feel free to give us a call! Thanks.