The most common type of water purification methods used by water coolers is reverse osmosis. It is mostly used by the water coolers which are connected directly to the plumbing system. In many cases, along with reverse osmosis activated carbon purification method too is used.
There are two types of water coolers: bottle-less and with bottle, they provide safe cool drinking water to the people and are usually installed in offices, public and commercial places. They fulfill the pre-requisite human need of quenching thirst through safe drinking water.
