Set of 10 100% French activated carbon x3 100% French coal from the Burgundy forest and managed responsibly. PEFC and FSC certified wood. Details: - Weight: approx. 5g-15g per stick - Filters up to 1.5L of water - 6 months of use per stick Manufacture: - Origin: France (Burgundy forest managed responsibly) - Packaging: France Characteristics: - Eliminates chemicals and heavy metals - Preserves minerals and trace elements - Improves the taste of water - 100% recyclable and compostable How to use activated carbon? - At the first use, put the charcoal for 10 minutes in boiling water - Let your charcoal dry for a few minutes - Let the charcoal work for 2 to 4 hours - Your water is purified 1% of our turnover is donated to our partner NGO working for reforestation in the Amazon.