A compact FiberCell Systems Hollow Fibre bioreactor enables any lab to continuously culture large numbers of cells at high density inside a standard incubator. Single-use cartridge modules with a built-in gas-exchanger provide a simple, time-scalable production process. This is a proven system for generating significant amounts of concentrated EVs/exosomes, mAbs or recombinant proteins. Projects to generate grams of product, with the advantage of a specific protein-free chemically-defined media, have been successfully managed with this system. Many publication references are available.