Ventilated seats are a type of car seat that is equipped with an additional system of forced air circulation. The seats have fans and small ducts installed in their cushions and backrests that facilitate cool air movement. The air is drawn from the cars cabin and pumped through holes located in the backrest and the seat itself. The principle of ventilated seats is very simple. Such seats are equipped with perforated plastic upholstery. Built-in fans driven by an electric motor pump air streams directly through holes located in the backrest and the seat itself. Ventilated seats operate similarly to cooled seats, but they never use refrigerated air. Some ventilated seats suck air into the seat, creating an evaporative effect that can cool the body, while others use fans to blow air directly on the seat occupant. Ventilated and cooled seats are widely available in cars and SUVs made by premium brands.