Tel Aviv , Israel ( CNN ) -- Water . A vital nutrient , yet one that is inaccessible to many worldwide . The World Health Organization reports that 780 million people do n't have access to clean water , and 3.4 million die each year due to water-borne diseases . But an Israeli company thinks it can play a part in alleviating the crisis by producing drinking water from thin air . Water-Gen has developed an Atmospheric Water-Generation Units using its `` GENius '' heat exchanger to chill air and condense water vapor . `` The clean air enters our GENius heat exchanger system where it is dehumidified , the water is removed from the air and collected in a collection tank inside the unit , '' says co-CEO Arye Kohavi . `` From there the water is passed through an extensive water filtration system which cleans it from possible chemical and microbiological contaminations , '' he explains . `` The clean purified water is stored in an internal water tank which is kept continuously preserved to keep it at high quality over time . '' Energy efficient . Capturing atmospheric humidity is n't a ground-breaking invention in itself -- other companies already sell atmospheric water generators for commercial and domestic use -- but Water-Gen says it has made its water generator more energy efficient than others by using the cooled air created by the unit to chill incoming air . `` Several companies tried to extract water from the air , '' says Kohavi . `` It looks simple , because air conditioning is extracting water from air . But the issue is to do it very efficiently , to produce as much water as you can per kilowatt of power consumed . '' He adds : `` When you 're very , very efficient , it brings us to the point that it is a real solution . Water from air became actually a solution for drinking water . '' The system produces 250-800 liters ( 65-210 gallons ) of potable water a day depending on temperature and humidity conditions and Kohavi says it uses two cents ' worth of electricity to produce a liter of water . Civilian uses . Developed primarily for the Israel Defense Forces ( IDF ) , Water-Gen says it has already sold units to militaries in seven countries , but Kohavi is keen to stress that the general population can also benefit from the technology . He explains : `` We believe that the products can be sold to developing countries in different civilian applications . For example in India , [ drinking ] water for homes is not available and will also be rare in the future . The Atmospheric Water-Generation Unit can be built as a residential unit and serve as a perfect water supply solution for homes in India . '' Kohavi says Water-Gen 's units can produce a liter of water for 1.5 Rupees , as opposed to 15 Rupees for a liter of bottled water . Dirty water . Another product Water-Gen has developed is a portable water purification system . It 's a battery-operated water filtration unit called Spring . Spring is able to filter 180 liters ( 48 gallons ) of water , and fits into a backpack -- enabling water filtration on the go . `` You can go to any lake , any place , any river , anything in the field , usually contaminated with industrial waste , or anything like that and actually filter it into the best drinking water that exists , '' says Kohavi . Major Alisa Zevin , head of the Facilities and Specialized Equipment Section for the IDF , says the unit is revolutionary for them . `` This unit gives logistic independence for the forces and make us ensure that we provide the soldiers high quality water , '' she says . In 2013 , the IDF took Spring to the Philippines after Typhoon Haiyan devastated the island country and left 4.2 million people affected by water scarcity . The system filtered what was undrinkable water into potable water , and that is what Water-Gen hopes to accomplish elsewhere where the technology is needed . `` It 's something as a Westerner you can not understand because you have a perfect water in the pipe , but people are dying from lack of water , '' says Kohavi . Although Water-Gen 's developments are n't a solution for the water crisis , Kohavi believes that the technology can do for countries that lack clean water , such as Haiti , what it has done for the Philippines . It can be the technology used to not only to filter water , but to save lives . `` They could actually bring solution , perfect solution , to the people over there , '' says Kohavi . `` For the kids ... They can use the technology to filter water in the field . People are going days just to carry water . And all our solutions can be an alternative for that . ''
Israeli company has developed device for extracting water from air . It says its water generator is more energy efficient than others . Its technologies are already used by the military in seven countries .