Yosemite Home Decor BWRS30W is a range hood that can be used for odor extraction or air filtering and recycling. It has two independent controls or pressure modulation on the control button. The device has two 40W lamps and a metallic filter that should be washed every 30 days or cleaned in a washing machine. The absorber plate should be 60cm above electric burners or 80cm above gas burners. The device must be connected to a 120mm diameter pipe for air extraction.