The present invention relates to a novel fire suppression device for prohibiting fire and preventing same from spreading. The device is compact and is configured to autonomously release type A or type B fire-retardant foam for covering a structure such as a building or portions thereof. The device includes a plurality of components, including a water reservoir, a foam concentrate reservoir, an oxygen reservoir, and an aerator for forming fire-retardant foam. In one embodiment, the device includes a sensor for detecting excessive temperature, smoke, or fire for autonomously actuating the device. In another embodiment, the device is manually activated by a user. The device can be used with new or existing buildings, designated fire (i.e., fireplace) spaces, and/or cook areas as well.