How does it work as an air purifier?
If you look at the cross section of bamboo charcoal through a microscope, you can see that it has countless holes forming a structure like a cluster of intricate tubes. When the interior area of the holes are measured, it amounts to more than 300 square meters per 1 gram of charcoal, resulting in its excellent absorptive capacity.
The Chikuno Cube was designed with this in mind and its micro-honeycomb structure helps amplify the surface area making this small cube able absorb odors in an enclosed space up to 17 square feet.
The cube is eco-friendly and can be used for up to one year. To refresh the cube, each month expose the cube to direct sunlight for six hours. This releases the absorbed odors and it is ready to reuse.
Winner of the Japanese Good Design Award, 2008