Adsorbi Opens Pilot Plant to Scale Cellulose Air Filters

Adsorbi Opens Pilot Plant to Scale Cellulose Air Filters

Image Source: Adsorbi

Biomaterials

Swedish cleantech startup Adsorbi has launched its first pilot plant in Gothenburg, marking a decisive step toward commercializing its bio-based air purification technology. 

The facility, with a nominal capacity of 140 tonnes per year, will produce Adsorbi’s proprietary material made from Nordic cellulose, already in use across six countries.

The new plant is designed to validate the scalability and performance of the company’s adsorbents in industrial applications. It will also serve as a platform to gather operational data, strengthen customer partnerships, and accelerate product-market fit.

“This pilot plant is a major inflection point,” said Hanna Munge, CEO of Adsorbi. “It de-risks our technology for a commercial scale and opens the door to revenue-generating deployments. With growing regulatory pressure for air purification companies and market demand for bio-based gas filter media, our platform is well-positioned for rapid adoption.”

Adsorbi’s technology, derived from wood-based cellulose fibers, captures harmful air pollutants in both indoor and outdoor environments.

The startup is targeting the multi-billion-dollar gaseous pollution removal market, offering an alternative to fossil-based filters without the high costs or energy consumption.

The launch comes as regulatory requirements tighten in Europe, following the EU’s updated Ambient Air Quality Directive of 2024, which imposes stricter limits on pollutants including PM2.5, PM10, nitrogen dioxide, and sulfur dioxide. Metsä Spring CEO and Adsorbi board member Niklas von Weymarn said the milestone “opens doors for both further development of the technology and deeper customer interaction.”

According to the World Health Organization, poor air quality contributes to more than 6 million premature deaths annually. Adsorbi’s solution aims to help industries and institutions comply with stricter air quality standards while advancing decarbonization and ESG goals.

“Our value proposition is strong,” Munge added. “We deliver cleaner air, lower operating costs, and faster compliance for our customers—and a high-impact, high-growth opportunity for our investors.”

Founded in 2022 and based in Gothenburg, Sweden, Adsorbi develops bio-based adsorbent materials for the air purification industry. Made from Nordic cellulose, its technology captures harmful air pollutants in indoor and outdoor environments, offering a sustainable and cost-efficient alternative to fossil-based filter solutions.