The document discusses membrane pressing technologies from Omnia. It describes the evolution of membrane presses from the early 1980s to present day, including features of early presses, the PM/CA liquid press from 1986, PM air presses from 1987 onwards, and more recent models like the PCC2M, Omnia 5 in 1, and Air/System/Eco presses. The Omnia 5 in 1 is highlighted as a highly flexible press that can function as a cold, hot, vacuum, single membrane, or double membrane press. Tips are provided on membrane pressing and different press types for various budgets.