Lifestraw Sa

Lifestraw Sarl

Vestergaard Sa

Daniel Frauchiger

Mikkel Vestergaard Frandsen

Jean-Marc Pascal

Jean-Luc Madier De Champvermeil

Luc Stoops

Roelie Bottema

A device () for purification of water driven by gravity through a purification unit between an upper dirt water container () and a lower clean water tank (). A backwash system may be integrated, the system comprising a receptacle () for accumulation of the backwash water to prevent consumption thereof by mistake.

Water purification device

A liquid filtration method and device, for example a drinking straw with a mouthpiece, and a bundle of hollow fibres. The open ends of the fibres are embedded in a base and provided in a compartment between the base and a liquid outlet. Water or other liquid flows into the inner volume of the hollow fibres and from there through their filtering membrane walls and into the compartment before the liquid flows out through the liquid outlet, for example the mouthpiece.

Drinking straw with hollow fibre liquid filter

Growing community of inventors

Prilly, Switzerland

Daniel Frauchiger