Welcome & thank you for visiting PAUL!

We are currently redesigning the PAUL website. Please check in again later!

Please find some current information on PAUL below!

PAUL, the ‚WaterBackpack‘, is a small membrane filtration unit which removes bacteria & virus and other pathogens from contaminated water without chemicals, electric energy, and can be operated even by illiterates in emergencies.

As PAUL has a 10+ year lifetime, the so called PAUL station arrangement can provide water as permanent supply for communities, schools, hospitals, offering the chance for the local population to decrease their cost for water and in addition earn their own money.


Would you like to know more about PAUL or the PAUL station? Click below for our current info leaflets:

Information videos on PAUL

Short info (German audio, 3 minutes):


PAUL in India and Vietnam (English audio, 12 minutes):


Contact us!

Prof. Dr. F.-B. Frechen
E-Mail: frechen[at]uni-kassel.de