Energy
Solight - Portable Solar Lights
https://solight-design.com
EcoFlow - energy solutions
https://us.ecoflow.com
Communication
Starlink - portable / backup / emergency internet
https://starlink.com
Water
Lifestraw - water filtration devices
https://lifestraw.com
Sari cloth can filter cholera from water, research shows
https://www.fic.nih.gov/News/GlobalHealthMatters/january-february-2015/Pages/nursing-cholera-sari-water-filter.aspx
The link between saris and cholera (Rita Colwell – water filtration)
https://www.cnn.com/2013/06/05/health/lifeswork-colwell-cholera
This Tower Pulls Drinking Water Out of Thin Air
http://www.smithsonianmag.com/innovation/this-tower-pulls-drinking-water-out-of-thin-air-180950399/?no-ist
Wind-powered Water Seer pulls 11 gallons of clean drinking water from thin air
http://inhabitat.com/wind-powered-water-seer-produces-11-gallons-of-clean-drinking-water-from-the-air/
The fog catcher who brings water to the poor
https://www.facebook.com/bbcnews/videos/1822799784644476/
Sanitation
Reliance - Luggable Loo Portable Toilet
https://relianceoutdoors.com/products/luggable-loo-portable-toilet