A kitchen hood, also known as a range hood or exhaust hood, is a device installed above a stove or cooktop to remove smoke, steam, grease, and odors from the air. It typically includes a fan and a filter, which help ventilate the kitchen by either expelling air outside or recirculating it after filtration. Kitchen hoods improve air quality, reduce heat buildup, and prevent grease from accumulating on surfaces, making cooking safer and more comfortable.