White Charcoal, which in it’s original form is wood from an oak tree, has an amazing ability to cleanse the air of odors and remove excess humidity.  Hakutan (top) is a section of the charcoal with a partiulary high carbon content, allowing these 3″ pieces to remove odors from an entire room.  Also shown are pieces of Binchotan (sculpture- middle and branches, bottom), which is white charcoal preserved in it’s natural (and beautiful) shape.  Decor with an important function.