Water Purifier Buying Guide
With growing industrialization we are all facing issues with water pollution. We should be very careful to use purified drinking water. There are lot of water purifiers available in the market which are made with different type of technologies/purification methodologies.
When you want to buy a water purifier first you need to know the different types of water impurities.
- Muddy Water : Physical impurities like dirt, dust and sand etc.
- Bad Color, Taste & Odor
- Bacteria and Virus : Biological contaminants
- Hard Water : Water with more dissolved solids like calcium, magnesium, potassium, sodium, bicarbonates, chlorides, and sulfates
Generally in market we found many purifiers with different price range. The price range depends on the purification technique the purifier used.
Let’s take a look at the major types of water purification techniques..
- Activated Carbon filter Purifier
The porous nature of the carbon (charcoal) helps to absorb chlorine and pollutants such as pesticides. Generally, household carbon filters come with a lining of activated silver that kills bacteria.
Chlorine releases hydrochloric acid, which reacts with the microorganisms and kills them. However due to its negative effect on health this technique is not used now a days.
- UV (Ultra Violet)
UV light (minimum level radiation) is passed on water to kill bacteria and other microbes by attacking the DNA in cells. These filters remove pesticides by up to 99%. It won’t use any chemical so it does not change water taste also cost effective and inexpensive require less maintenance.
- RO (Reverse Osmosis)
Reverse Osmosis (RO) system offers a multi-stage filtration of water by combining active carbon and also particle filtration. Good for water containing high TDS level. RO is mostly used in houses because is is able to remove all kind of impurities from water such as dissolved salts, bacteria, and germs.
These are with a combination of multiple purification technologies like : RO+UV, which is more effective to clean all types of impurities that may not be purified with single purification technique.