Availability of Charcoal Bamboo tubes

[silane]

Originally Posted by EvolutionZ

hi guys. just bought 1 pack of charcoal bamboo from daiso. on the back of the pack. it says "cleaning and deodorizing effects work for 3 months" so i guess we only have to re-boil them every 3months? anyone use more den 1 mth alrready? was worried that after 1 mth the toxic they absorbed will be returned back to the water.

Does the instruction in the pack ask you to boil????