Born and developed in Canada over 40 years ago, the Cellulose Fibre insulation is manufactured in France, in the heart of the Vendée region, from paper collected from local recycling channels and from community collections (schools, associations, etc.). Not only does it diminish the global waste volume, but it also allows to raise public awareness on the importance and interest of the circular economy. The Cellulose implements all available means towards a sustainable development and energy transition. One ton of its bio-based carbon net-negative cellulose fiber insulation (CFI) removes 1,04 tons of CO2eq from the atmosphere into long-term storage. This insulation is suitable for both new and refurbished buildings. Over 18 months, up to 31400 tons of CFI have been fitted and insures the proper insulation of 39 000 housings. This product offers CO2 storage within a durable building for at least 50 years. No heat is necessary to manufacture cellulose insulation, through its nearly zero waste production process. Finally, due to its excellent thermal performance, cellulose fibre insulation allows for significant energy savings throughout the year, an undeniable advantage for individuals and the environment.