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The Portable Aqua Unit for Lifesaving (short PAUL) is a portable ultrafiltration-based membrane water filter for humanitarian aid. It allows the decentralized supply of clean water in emergency and disaster situations for about 400 persons per unit per day. The filter is designed to function with neither chemicals nor energy nor trained personnel.
Portable Aqua Unit for Lifesaving. Water backpack "PAUL". The Portable Aqua Unit for Lifesaving (short PAUL ), also known as Water Backpack is a portable membrane water filter developed at the University of Kassel for humanitarian aid. It allows the decentralized supply of clean water in emergency and disaster situations.
A water filter removes impurities by lowering contamination of water using a fine physical barrier, a chemical process, or a biological process. Filters cleanse water to different extents, for purposes such as: providing agricultural irrigation, accessible drinking water, public and private aquariums, and the safe use of ponds and swimming pools .
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These quiet and effective air purifiers are the best of 2023. Check out the expert-recommended air purifiers that clean out allergens, mold spores, & more. The 6 Best Air Purifiers for Any Room in ...
Slingshot. Slingshot is a water purification device created by inventor Dean Kamen. [ 1] Powered by a Stirling engine running on a combustible fuel source, it claims to be able to produce drinking water from almost any source [ 2] by means of vapor compression distillation, [ 3] requires no filters, and can operate using cow dung as fuel.