In April 2025, Cotentin Filtration, a dynamic and committed company based in Manche, was selected to participate in the famous Concours Lépine. This competition, recognized for showcasing the best inventions and most promising innovations from France and beyond, will take place in Paris from April 30 to May 11. Sébastien Vrac, the founder of Cotentin Filtration, is excited to present a revolutionary technology aimed at improving the cleanliness of urban spaces.
This selection is a true recognition for Cotentin Filtration, reminding us of the importance of local know-how and craftsmanship in the field of entrepreneurship. This article explores not only the details of the innovation proposed by the company but also the broader implications for the environment and awareness of water management.
The rest of this article covers the following sections:
- The journey of Cotentin Filtration and its importance in the local landscape
- Analysis of the innovation and its impact on rainwater management
- Participation in the Concours Lépine: challenges and opportunities
- Award and future prospects for Cotentin Filtration
The journey of Cotentin Filtration and its importance in the local landscape
Cotentin Filtration is not just a simple company; it is a story of passion and dedication to the environment. Founded by Sébastien Vrac, it quickly gained recognition thanks to its unique approach to rainwater filtration. With a strong commitment to cleaner cities, Cotentin Filtration has managed to stand out in a sector that is often underrepresented.

Since its beginnings, Cotentin Filtration has managed to combine innovation and tradition. The team, made up of members passionate about nature and technology, has developed a filtration system that leverages recycled and natural materials, making it a practical and environmentally friendly solution.
Positive impact on the local environment
In terms of environmental impact, every intervention by Cotentin Filtration aims to reduce waste and improve water quality. Thus, the company has developed an innovative filter, installed in drainages in several cities, including Cherbourg and Dives-sur-Mer. With the arrival of technology in Landerneau, the movement is gaining momentum and significantly contributing to the queue of ecological initiatives.
- Waste reduction: The filter captures waste before it reaches the drainage networks.
- Use of natural materials: The system is based on a hair-based support, allowing efficiency while respecting the planet.
- Awareness: Each installation is an opportunity to educate residents about rainwater management.
A model of responsible entrepreneurship
In a world where the economy is often perceived as prioritizing profit, Cotentin Filtration positions itself as a model of responsible entrepreneurship. By combining technical innovation and environmental responsibility, the company demonstrates that it is possible to act positively. This type of approach is increasingly crucial in the current context, where businesses must assume a societal and environmental role.
Year | Event | Impact |
---|---|---|
2012 | Obtaining the gold medal at the Concours Lépine | National recognition of innovation |
2025 | Selection for the Concours Lépine | Increased visibility and development opportunities |
2025 | Installation in Landerneau | Extension of ecological impact |
Analysis of the innovation and its impact on rainwater management
The filter designed by Cotentin Filtration represents a major advance in rainwater management. At a time when rainy episodes are increasing, it is crucial to find effective solutions to prevent flooding and improve water quality. The innovation of Cotentin Filtration is not just a response to a problem; it is also a step towards collective awareness about water treatment.

The technology behind the filter
The filter for drainage developed by Cotentin Filtration stands out due to its innovative and sustainable approach. Using a natural material, this filter effectively captures various types of waste, from leaves to plastics. The fact that it is made from hair makes it a unique solution, as it also contributes to reducing waste in the hairdressing sector.
Environmental and societal benefits
Here are some notable benefits of this invention:
- Effective filter: Capable of capturing up to 90% of waste.
- Circular economy: Reusing hair, an often neglected resource.
- Awareness: Encourages the public to engage in waste management.
In addition to ecological benefits, this type of innovation creates jobs and stimulates the local economy, thereby showcasing Cotentin know-how.
Type of waste | Percentage captured | Environmental impact |
---|---|---|
Plastics | 90% | Reduction of aquatic pollution |
Leaves | 85% | Improvement of waterway quality |
Various waste | 80% | Preservation of aquatic wildlife |
Participation in the Concours Lépine: challenges and opportunities
Participation in the 2025 edition of the Concours Lépine represents a crucial moment for Cotentin Filtration. More than just a showcase, it is a unique opportunity to gain national and international recognition. Sébastien Vrac does not hide his enthusiasm: “This selection highlights our work and emphasizes the importance of better rainwater treatment.”
Network and increased visibility
Participating in this event allows Cotentin Filtration to meet key players in the sector, potential investors, and other innovators. In addition, the competition offers media exposure that can propel the company to new heights. Recognition through an award, such as the innovation prize, can provide a real boost to the company.
Preparing a strong stand
For this edition, the Cotentin Filtration team will have a 6m² stand, where they will showcase their innovative filter. Highlighting the product and its functioning will be essential. This space is also an opportunity for exchange, allowing the team to receive feedback from the jury and visitors.
- Establish contacts: Network of professionals and experts.
- Generate interest: Interactions with the targeted public.
- Media visibility: Presentation to a national and international audience.
Award and future prospects for Cotentin Filtration
The selection process for the Concours Lépine is a real obstacle course, but it is worth it. The rewards go far beyond mere medals, as they offer the possibility of generating a significant impact on the world. Participation in this edition could open doors to future projects and the expansion of the company.

The benefits of a potential victory
Winning an award at the Concours Lépine could have profound consequences for Cotentin Filtration. Not only would it enhance the company’s credibility, but it would also foster:
- Attracting investments: Awards can attract the attention of investment funds.
- Accelerating innovation: More resources to develop new solutions.
- Expanding the market: Opportunity to reach new clients in France and internationally.
A committed future for the environment
Beyond immediate rewards, Cotentin Filtration aims to continue its development as a leading company in rainwater filtration. Sébastien Vrac emphasizes that every step in this adventure is motivated by a collective vision of a more responsible and sustainable future. Every installed filter is a step towards cleaner cities and increased awareness.
Objective | Planned actions | Expected impact |
---|---|---|
Request for geographical expansion | New installation in other French cities | Increase the outreach of impact on rainwater |
Citizen education | Awareness workshops | Raise awareness about waste management |
Partnerships | Collaboration with other companies | Strengthen the effectiveness of ecological solutions |
Collective commitment for a better future
With the passion of each team member, Cotentin Filtration represents a beacon of hope. Creativity and innovation must be an integral part of solutions to environmental challenges. This model deserves to be observed and emulated by other players in the economy. It is by working together that we can achieve real change.
FAQ
What is the Concours Lépine?
The Concours Lépine is a French competition that rewards the best inventions and innovations. This competition takes place annually in Paris and serves as a platform for inventors.
What are the innovations of Cotentin Filtration?
Cotentin Filtration has developed a filter for drainage, using a hair-based support that effectively captures waste while contributing to rainwater management.
What is the impact of this innovation on the environment?
This innovation reduces pollution in waterways by capturing waste before it reaches drainage systems, thus improving water quality and the health of aquatic ecosystems.
What are the challenges of participating in the Concours Lépine?
Participating in the Concours Lépine offers Cotentin Filtration increased visibility and the opportunity to win an award that could attract investments and propel the company to new horizons.
How does Cotentin Filtration position itself as a responsible company?
Cotentin Filtration combines innovation and responsibility by providing ecological solutions and using recycled materials, while also raising public awareness about waste management.