Descriptions:

ABSORBS EXCESS MOISTURE
Bamboo charcoal has an negative ionic charge attracting odours and excess moisture in the atmosphere. It retains the high density and porous structure of its raw material moso bamboo. This structure enables bamboo charcoal to absorb excessive moisture effectively.
Use bamboo charcoal as a:
dehumidifier in your drawers, cabinets, closets, rice bin, garage, basement, and other storage areas.

PURIFIES + MINERALIZES WATER
When submersed in water, bamboo charcoal softens the water, absorbs harmful minerals including chlorine and releases its natural minerals (calcium, sodium, magnesium) into the water.
Use bamboo charcoal as a:
aquarium filter
water filter for bath water and non-drinking water for general household and industrial use 
decoration for aquarium and floral arrangements