Groupe Brandt HM2644E1 is a canopy cooker hood designed for both external evacuation or internal recirculation use (filtering). External evacuation mode passes cooking fumes to the atmosphere through a ducting system, while internal recirculation mode purifies the air and recirculates it into the room. It features a three-speed fan, worktop illumination, and a grease filter to retain solid grease particles. For internal recirculation mode, a charcoal filter absorbs smells and odors and should be replaced every three months.