When it comes to clean air, Unifil AG Filtertechnik has been your competent partner since 1978. Founded by Werner Frei, the company is now successfully managed by his son Matthias in the second generation. Unifil is committed to Switzerland as a location and produces exclusively in its own factories in Niederlenz, Aargau. Around 140 employees manufacture and distribute a full range of air filters for a very broad spectrum of applications on an area of around 20,000 m2 - from conventional building ventilation to complex industrial applications and pre-filter stages for highly sensitive cleanroom applications.

As the market leader, the company has fully aligned its activities with the diverse requirements of its customers, both in terms of products and services. For example, around 300 specialists attend in-house training courses every year to expand their knowledge of filter technology and product applications.

Unifil has one of the most modern test laboratories in Europe, which is used intensively for research and development as well as for international standardization work.

Unifil products stand for quality, reliability and progressiveness. Coupled with a comprehensive service package, customers benefit from an optimum price/performance ratio.

Low energy costs and clean, hygienically perfect air - challenges that Unifil faces every day.