A challenge that extends beyond protection from malaria

Long-lasting insecticide-treated nets (LLINs) save lives every day. Yet the materials used to make them place real pressure on the environment, especially in countries where waste infrastructure is limited. Moving towards a circular economy is essential if the global malaria community is to protect both people and the ecosystems they depend on.

Around 200 million nets are distributed globally each year—enough to cover the island of Manhattan many times over. Most are made from polyester, a form of PET plastic. Even though LLINs represent only a small fraction of total plastic use in malaria-endemic countries, they still generate a waste stream that is difficult to manage safely.

Many places lack facilities to dispose of old nets in a way that fully protects surrounding communities and ecosystems. As countries face increasing environmental pressures, reducing avoidable plastic waste wherever possible has become an important area of focus across the malaria community.

Engineering solutions that lower environmental impact

A few years ago, our teams asked a simple question: could a net designed to protect families also be designed to protect the environment?

This sparked a multi-year effort across research laboratories and production sites to rethink how raw materials are sourced and how nets reach the end of their life.

After extensive testing, we developed and validated a process that allows new LLINs to be manufactured from old ones—turning post-consumer PET into high-quality yarn without compromising durability or performance. This technology also enables the use of upcycled post-production materials, keeping more plastic out of landfills and waterways while lowering the carbon footprint associated with producing virgin polyester.

This is part of a broader commitment to responsible manufacturing—combining precision engineering, environmental stewardship and the “passioneering” spirit that drives our teams to push for solutions that meet both public-health and sustainability needs.

A circular economy requires collaboration

Recycling LLINs at scale cannot be achieved by manufacturers alone. Closing the loop will require coordinated systems that make it possible to collect, transport and process old nets safely. National malaria programmes, environment authorities, global funders and implementing partners each have an essential role to play in designing these systems so they work in practice—not only in pilot settings but across entire countries.

The opportunity is clear: a future where millions of nets continue to prevent malaria and where their materials can be reused again and again. Achieving this future will depend on sustained partnership, long-term thinking and a shared commitment to reducing environmental impact while protecting health.