Next month, the INDEX05 exhibition, the world's largest and most important meeting place for the nonwovens sector, will showcase applications of nonwovens in the filtration and other markets. The exhibition takes place in Switzerland, from 12 - 15 April at the Geneva Palexpo. Filtration + Separation takes a look at what difference nonwovens are making to the filtration sector, and talks to some of those companies who will be exhibiting.