Water is the major source of life, but the same water when comes in contact with many earthly particles and biomass becomes life threatening and hence the need to purify the water before drinking to avoid diseases.
Top 5 uses of water in US: Drinking, Agriculture, Industry, Energy, Recreation. $ 134 Billion is the water market in US.
1 in 5 water bottles are recycled, resulting in 2 billion pounds of waste every year.
Most of the Countries provide clean drinking water, but the transfer of water to homes contaminates it. Which again puts a need to install a water purifier or buying water from outside which led to the rapid growth of the water based industries.
POUW filters are mostly used to filter water and there are of 6 types Membrane, Reverse Osmosis, Activated Carbon, Distillers, Ion Exchange and Ultra Violent.
Most of the office buildings use 13 % of water for Drinking/Kitchen, 28% cooling and heating, 22% Landscaping and 37% for Rest rooms.
9% of total water use in commercial and institutional facilities comes from office buildings.