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PAUL, the ‚WaterBackpack‘, is a small and portable (20 kg) 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. 3,000 PAUL units are in more than 80 countries worldwide 

As PAUL has a 10+ year lifetime, the so called PAUL station arrangement  – with a standard PAUL unit as the core – provides a permanent water 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.
More than 500 PAUL station arrangements are installed worldwide

Information videos on PAUL

Short info (German audio, 3 minutes):


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

Contact & more

Contact us!

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

Donate for more PAUL and PAUL stations

... or donate via

bank account holder:
World University Service

reason:  PAUL

bank:  Bank für Sozialwirtschaft
IBAN:  DE95 3702 0500 0007 2321 00
BIC:  BFSWDE33XXX

please include postal address for donation certificate

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