Ecological / Reusable / Durable / Practical / Space-saving Activated charcoal sticks improve the quality of drinking water by naturally purifying it and reducing bad tastes and odors. They allow you to do without bottled water (expensive and not very ecological) or plastic filter cartridges. The ecological benefits of bamboo > Bamboo matures in 3 to 5 years, unlike other woods (oak, beech, ...) which become mature between 20 and 50 years. > Bamboo is a "champion" in the fight against the greenhouse effect It stores 4 to 5 times more carbon than an equivalent volume of trees and produces 30% more oxygen. > Extremely porous, bamboo absorbs 3 times more pollutants than regular wood. Usage > To be placed in the container: glass, carafe, water bottle > Active bamboo charcoal for ~4 weeks. > Reactivable once (after ~10 minutes in boiling water) > Reusable as a deodorizer dimensions: 5.2 x 1.5 cm