Ventilation & Heat Recovery Unit LAIL AL TAREQ Company is proud to represent Two world-renowned brands in the Ventalation and Heat Recovery system like DOGU & Carrier providing high-quality cooling solutions for a wide range of commercial and industrial applications. BGK – Bypass Damper Heat Recovery BGK Bypass Damper Heat Recovery IGK – Heat Recovery Unit HPGK Heat Pump Heat Recovery Vertical Energy Recovery Ventilator Dehumidifier DEHXX Whole-Home DehumidifierDEHXX Horizontal Energy Recovery Ventilator