|First Appearance||Chapter 112|
|Anime Debut||Episode 50|
|[v · t · e]|
The Air Tree is special tree which grows the Gourmet World's Underground Forest and also in the Nightmare Hill whose fruit gives birth to air. When they are born, the ratio of components in the air is different so there can be dense oxygen, carbon monoxide or carbon dioxide. If proper fertilizer is given to the tree, more good quality air can be produced. Only a strong life force can become fertilizer for this tree. It's also an ingredient but it's a "Super Specially Cooked Ingredient".