Built-in retractable ventilation hood assembly

A built-in ventilation hood assembly for air exhausting, comprising:

• a housing for embedding into a kitchen cabinet immediately above a built-in cooking device being installed in the same kitchen cabinet, the housing having a substantially rectangular parallelepiped shape and including at least a bottom wall, a top wall, and two side walls, wherein the top wall includes at least one rectangular opening for air;
• a retractable hood unit configured to be slidably mounted within the housing, the retractable hood unit includes at least one air intake into which air is drawn;
• a telescoping linear actuator configured to slide out the retractable hood unit from the housing and slide the retractable hood unit back into the housing, wherein a main body of the linear actuator is stationary secured to the bottom wall or the top wall of the housing;
• and
• an air blower installed within the housing and in a rear end of the housing, the at least one air blower configured to draw air into the housing through the at least one air intake of the retractable hood unit and uniformly exhaust the air out of the housing through the opening, wherein a rotation speed of the air blower depends on a position of the retractable hood unit being slid out of the housing;
• and
• wherein the air blower includes at least one cross flow fan.