Hood for the suction of cooking fumes, comprising - a box-like body having a frontal opening for the suction of cooking fumes; - suction means associated with said box-like body for conveying the cooking fumes through said frontal opening; - a panel connected to the box-like body and positioned to cover said frontal opening so as to allow an air flow through said frontal opening; - opening/closing means positioned between the panel and the box-like body to allow a rotation of the panel with respect to the box-like body, said panel being switchable between a closed configuration in which it precludes access inside the box-like body, and an open configuration in which the inside of the box-like body is accessible through said frontal opening; said opening/closing means comprising: - a support element configured to keep the panel raised in the open configuration; said support element being arranged to push said panel against the box-like body when the panel is in the closed configuration; - a connecting element fixed to the panel and connected to the box-like body to allow the rotation of the panel with respect to the box-like body; said connecting element being connected to the support element; - a first fixed hinge connecting the connecting element to the box-like body; - a second fixed hinge connecting the support element to the box-like body; - a movable hinge connecting the connecting element and the support element, said connecting element and support element being movable with respect to each other; wherein the panel is further switchable in an intermediate configuration in which it is closer to the box-like body, the movable hinge being aligned with the line connecting the fixed hinges (9, 10) when the panel is in the intermediate configuration, characterized in that the connecting element comprises an arm and a guide, placed between the first fixed hinge and said arm, the box-like body comprising a pin inserted in the guide, said guide being configured to slide with respect to said pin when the panel switches between said configurations. - a box-like body having a frontal opening for the suction of cooking fumes; - suction means associated with said box-like body for conveying the cooking fumes through said frontal opening; - a panel connected to the box-like body and positioned to cover said frontal opening so as to allow an air flow through said frontal opening; - opening/closing means positioned between the panel and the box-like body to allow a rotation of the panel with respect to the box-like body, said panel being switchable between a closed configuration in which it precludes access inside the box-like body, and an open configuration in which the inside of the box-like body is accessible through said frontal opening; said opening/closing means comprising: - a support element configured to keep the panel raised in the open configuration; said support element being arranged to push said panel against the box-like body when the panel is in the closed configuration; - a connecting element fixed to the panel and connected to the box-like body to allow the rotation of the panel with respect to the box-like body; said connecting element being connected to the support element; - a first fixed hinge connecting the connecting element to the box-like body; - a second fixed hinge connecting the support element to the box-like body; - a movable hinge connecting the connecting element and the support element, said connecting element and support element being movable with respect to each other; - a support element configured to keep the panel raised in the open configuration; said support element being arranged to push said panel against the box-like body when the panel is in the closed configuration; - a connecting element fixed to the panel and connected to the box-like body to allow the rotation of the panel with respect to the box-like body; said connecting element being connected to the support element; - a first fixed hinge connecting the connecting element to the box-like body; - a second fixed hinge connecting the support element to the box-like body; - a movable hinge connecting the connecting element and the support element, said connecting element and support element being movable with respect to each other; wherein the panel is further switchable in an intermediate configuration in which it is closer to the box-like body, the movable hinge being aligned with the line connecting the fixed hinges (9, 10) when the panel is in the intermediate configuration, characterized in that the connecting element comprises an arm and a guide, placed between the first fixed hinge and said arm, the box-like body comprising a pin inserted in the guide, said guide being configured to slide with respect to said pin when the panel switches between said configurations.