By Timothy S. Donahue

Filters ‌used ‌to ‌sit in the background. That era is over.

Between tougher rules and the way next-generation products are being built, the once-humble filter is sliding into the spotlight for what comes next in the nicotine industry, according to Hugo Azinheira, Filtrona’s executive director for global research and innovation, where compliance, performance, and sustainability are starting to converge.

“Filtration is no longer just a component; it is becoming part of the product system that regulators and consumers are scrutinizing more closely,” Azinheira said. Policy is pushing this as much as the market is.

In a recent white paper, Filtrona argues the conversation is shifting away from outright bans and toward liability. More governments are linking filters to environmental harm and then seeking ways to claw back costs through Extended Producer Responsibility (EPR) frameworks.

“The risk has shifted from prohibition to liability,” the paper says, citing COP11 discussions that reinforced environmental and liability language related to tobacco waste. For manufacturers, that changes the brief. Filters can’t just work; they have to be demonstrable.

“Regulators now require verifiable environmental and chemical safety data,” Azinheira said. “Our customers want filters that deliver performance and a differentiated sensory experience but also come with the data and compliant-ready materials required to ensure their products comply with today’s regulatory environment.”

That pressure is nudging the industry away from classic cellulose acetate and toward more specialized, more sustainable options, even if the pace is uneven across markets and brands. “The transition towards sustainable filters is underway but remains slow,” he said. “Paper-based, fibre-based, and engineered non-wovens are viable at scale today, though adoption depends on customers’ transition timelines and regulatory clarity.”

Still, he argues that the end state is hard to miss. “It is increasingly clear that plastic-free is no longer an option but a necessity in time to come,” Azinheira added. Filtrona says that over 20% of its portfolio is already plastic-free. Material selection, it says, is now directly tied to lifecycle emissions, exposure to regulatory action, and the cost shaped by environmental compliance.

And this isn’t only a cigarette issue. As companies increasingly focus on heated tobacco products (HTPs) and other reduced-risk categories, filtration is becoming less of a commodity component and more of a technical point of differentiation. “HTPs are technology-driven innovations, not commodities,” Azinheira said. “The challenge lies in managing heat dissipation, aerosol stability, enhanced filtration efficiency, and emissions compliance, all at once.”

Filtrona’s BOREAS platform is presented as a response to that, featuring multi-segment filter designs to control temperature, airflow, and aerosol delivery. “Whether customers seek advanced filtration, heat dissipation technology, or optimal aerosol delivery, we offer them the flexibility and performance required for HTPs,” he said.

Meanwhile, product development is expanding across both premium and value tiers. In emerging markets, “affordable premium” features are shaping expectations, and capsule products are a major part of that trend. “In high-growth markets, consumers increasingly expect ‘affordable premium’ features in the capsule segment,” Azinheira said, pointing to strong pull for flavor-led designs and modular formats that let low-cost brands offer a stronger sensory experience.

The white paper highlights similar patterns worldwide, with specialty filters, capsules, and flavor systems becoming a primary route to differentiation in both mature and developing markets. But the same innovation that creates distinction can also create exposure, particularly when regulators move beyond taxation and begin targeting design choices and materials.

“Regulation has moved beyond simple excise hikes,” the report says, describing deeper scrutiny of filters, flavors, and environmental spillovers like microplastics and lifecycle emissions. That forces a different kind of planning: not only what to launch, but how fast a product can be adjusted when the ground shifts.

“Regulatory readiness and modularity are competitive advantages,” Azinheira said. “It is crucial to design filters that can be quickly ‘de featured’… if regulations change, to protect customers’ investments in base volumes.”

In practice, that modular mindset, in which capsules or flavor segments can be removed or reworked, serves as a buffer against regulatory swings, especially as flavor bans and design restrictions spread globally. Sustainability, too, is moving beyond box-ticking and into the commercial argument.

“Achieving zero waste to landfill across all our sites and a 51% reduction in Scope 1 & 2 emissions mean our filters carry a lower lifecycle impact,” Azinheira said. “For customers, this means reduced EPR costs, stronger regulatory readiness, enhanced reputational protection, and, above all, long-term value creation.”

Looking ahead, Azinheira defines success in filtration as a mix of sustainability, compliance, and technical progress across both combustible and next-generation categories. “Success in filter manufacturing will hinge on a combination of sustainability, innovation, compliance, adaptability, and supply chain efficiency,” he said.

Despite declines in some regions, combustibles still account for major volume. At the same time, HTPs and other next-generation products are driving fresh demand for advanced filtration systems.

“The rapid growth of HTPs and other next-generation products underscores an appetite for innovation,” Azinheira said. “We see an exciting future ahead… where Filtrona will continue to play a significant role in driving change and enabling business growth through product innovations, advanced technology, and sustainable solutions.”