The Trosa Tech Centre is the hub of a global research and development organisation, at the forefront of work to analyse indoor air and to test the performance of different filters. The centre opened in 2010, but Camfil built Europe's first test rig for HEPA filters as early as 1967.

As one of the world's largest research centres for clean indoor air and filtration technology, it is an example of Camfil's innovation and conforms to its business philosophy that the best way to predict the future is to create it.

Anders Sundvik, Vice President R&D at Camfil, said: 'As a business, we continue to invest heavily in research and development in order to innovate in the creation of sustainable products at the leading edge of technology. 'Clean air plays a massive part in many industries in terms of productivity and quality but, most importantly, it offers significant benefits for all humans' health and wellbeing. The products that Camfil develops make an enormous contribution to this. The third perspective is environmental concerns by offering the lowest possible energy usage.'