This Device Acts as a Water Filter and a Life Raft

 - Sep 1, 2015
References: yankodesign
This water filtering buoy is a dynamic innovation that can provide fresh water and help people who are stranded stay alive.

The 'Solar Water Still' is a device that is multifunctional and does quite a bit more than just float like a regular buoy. Designed by Li Zhengkui, the device is capable of taking solar power and tidal power and using that energy towards a filtration system. This system takes in the sea water and turns it into drinkable, fresh water that boats and ships can then take with them for longer voyages.

Additionally, the water filtering buoy also serves as a flotation device for anyone stranded to send an SOS signal. The buoy also comes equipped with basic supplies to keep you alive.