Giantex Smokeless Fire Pit for Outside - 19.5 Inch Stainless Steel Wood Burning Firepit with Protective CoverUnique 3 Level Combustion: The unique structure of this fire pit will lead to 3 level combustion. As a result, the outstanding air circulating system and Oxygen enriched fire technology ensures optimal heat with less smoke and wood. And the smokeless burning technology offers you a clean bonfire atmosphere. Attractive Flame Effect: In the first combustion, vents in the second layer let air in directly to provide oxygen to the fuel. Then comes the