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Outdoor barbecue is very popular for gathering and having fun. However, a large amount of lampblack is generated due to the oil dripping on the charcoal when barbecuing. Lampblack emission into the air causes environmental pollution, and inhalation of the human body is harmful to health. The GradientBBQ is an outdoor barbecue grill. It has a gradient BBQ net to collect oil and reduce oil dripping on the charcoal. BBQ wire mesh has longitudinal oblique groove weaving structure so the oil can flow into the collecting tray along the gradient grill. And there is a solar range hood over the grill which has strong suction up to 18 m3 / min.