LG WW121EP 8 L RO + UF Water Purifier Review

Drinking safe water is not just a necessity; it should be our priority. The 5 stage RO filtration system of LG purifiers aims at providing 100% safe drinking water where one can be sure of being safe from water-borne diseases and impure water.


5 Stage RO Filtration System

The water purifier comprises 5 RO filtration stages, namely sediment filter, pre-carbon filter, RO filter, mineral booster, and post-carbon filter.

It removes the virus, and bacteria from water separate purified water from the impure water and helps retain essential minerals like Calcium and Magnesium in the water.

Dual Protection Stainless Steel Tank

Stainless steel tanks have 94.4% less E.Coli growth; thus are more hygienic than plastic tanks. It comes with a double protection seal that eliminates any harmful bacterial or algae growth in water, ensuring that water remains safe and fresh for drinking.

Digital Sterilization and Authorized Filter

Digital Sterilization is exclusive of LG. In this, a unique sterilizing kit is used to sterilize the entire path through which the water flows, the faucet, and the stainless steel tank so that harmful chemicals, if any, can be removed.

Also, the Outside Sediment Filter, Pre-Carbon Filter, and Post-Carbon Filter are made of 100% genuine parts, and there is no filter duplicacy. The LG authorized filters help retain the productivity of the product for a longer period.

Wall Mount

The installation of an LG water purifier is effortless and easy.  It can be fitted on walls as per the requirement and space available. The wall-mountable design usually occupies very little space.

Smart Display

When talking of convenience, the smart display of the purifier with filter change indicator, UV sterilizing indicator, and water level indicator has got it all covered.

It is a convenient feature as the indicators are designed in such a way that they are visible from a distance or at night.

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What Do We like


The smart display of the purifier with filter change indicator, UV sterilizing indicator, and water level indicator can be easily seen from a distance or even at night. Also, the wall mount design occupies very little space.

Storage capacity

The purifier has a large storage capacity with a storage tank of 8 L, and the tank is made of Dual-Protection Stainless Steel to ensure hygiene.

5 Health benefits

The 5 stage filtration system and the digital sterilization system retain not only essential minerals in water but also remove harmful bacteria from water and provides safe drinking water.

Award and Recognition

The Water Awards 2017-18 recognized the purifier as the most extraordinary domestic water purifier. In addition to that, it is also awarded by the Water Digest Water Awards 2017-18, supported by the Ministry of Water Resources.

What We Don’t Like

Absence of mineral booster

The mineral booster is an essential feature for purifiers, but the LG purifier does not come with a mineral booster, which can be a drawback for the purifier.

Limited storage capacity

The storage capacity of 8 liters might be enough for a small family, but for a joint family, it is very less.

Water wastage

20L  water is thrown out by the machine to fill the 8L tank. It is thus recommended to save the water in a container and use it for cleaning utensils, washing clothes, and other household chores.


5 Stage RO Filtration System, Dual Protection Stainless Steel Tank, Digital Sterilization provides safe drinking water by removing harmful bacteria from water and retaining essential minerals like Calcium and Magnesium.

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Purba Bhattacharjee

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