As the name suggests, the water purifier is a machine that purifies water to free it from harmful pollutants like pesticides, dangerous chemical compounds like nitrates and sulfates; metals and non-metal components like lead, fluoride, chlorine; and detergents.
There are two main variants of the water purifier today that are widely available in the market at varying water purifier price. They are:
Many newly constructed apartments in urban India these days provide for clean water after having purified it by running through a RO water purifier system.
Benefits of the RO water purifier are: delivers water that is free from any unwanted taste and odor; saves time, gas and money that would otherwise be used for boiling water or ordering for bottled water; removes about 99% of known 65 major impurities from water; easy to clean the system with few replacements required from time to time.
The main disadvantages of this type are firstly that it consumes lots of electric power to function and secondly it wastes about 50% of the water that is drained out with the contaminants.
The best part about this type of filter is that it uses environmental friendly technology to clean the water without use of any chemicals. It also uses minimal electricity with no wastage of water. It works very fast and is capable of providing clean water in minutes.
The disadvantage is that it cannot treat water that has higher levels of Total Dissolved solids and is unable to remove chemicals dissolved in the water like chlorine, lead, arsenic, fluorides etc. It also is unable to remove bad taste and odor from the water. Not to forget that the dead micro-organisms remain in the water.
The best water purifier in India is the one that uses combined technology of the above two types along with the TDS system and/or the Ultra Filtration method for delivering best quality of water for consumption.