Abstract: A range hood is constructed to include a body formed of a bottom panel, a locating plate supported on the bottom panel, a top panel mounted on the locating plate, a front control panel and a rear panel respectively fastened to the top and bottom panels at the front and rear sides, and two wind guides adjustably fastened to the locating plate and protruded over two sides of the bottom panel for guiding escaped waste gas into the inside of the body, a wind box mounted in the body to hold a fan for drawing waste gas into the body through a main suction hole in the bottom panel and suction holes in side flanges of the bottom panel, and an exhaust pipe sleeved onto the wind box and extended out of the body for guiding out waste gas from the wind box and the body.