Pureit is a consumer brand specializing in household water purification systems. The brand is known for developing water purifiers that use technologies such as Reverse Osmosis (RO), Ultraviolet (UV) purification, Microfiltration (MF), Ultrafiltration (UF), activated carbon, and mineral enrichment to provide safe drinking water. Pureit was originally developed by Hindustan Unilever Limited (HUL), a subsidiary of Unilever, and has become one of the most recognized water purifier brands in India and several international markets. In November 2024, ownership of the brand was acquired by A. O. Smith Corporation, a global water technology company. [1]

Development

Pureit was conceived in the early 2000s by Hindustan Unilever as a response to the widespread challenge of unsafe drinking water, particularly in developing regions where municipal water quality and infrastructure varied significantly.

The brand was first test marketed in Chennai, India, in 2004, followed by commercial introduction in 2005. Unlike many competing products at the time, the first Pureit purifier was designed to function without electricity or running tap pressure, making it practical for both urban and rural households. [2]

National Expansion

Following successful regional trials, Pureit expanded across India.

Key milestones include:

• 2004 – Test marketing in Chennai

• 2005 – Initial commercial launch

• 2008 – Nationwide availability across India

• 2010 – International expansion into overseas markets [3]

Acquisition by A. O. Smith

On 1 November 2024, A. O. Smith Corporation completed the acquisition of Pureit from Unilever for approximately US$120 million (subject to customary adjustments). The acquisition was intended to strengthen A. O. Smith’s residential water treatment portfolio, particularly in India, where Pureit had established a strong market presence. [4]

Pureit offers a broad portfolio of household water purification products, including:

Gravity Water Purifiers

These models operate without electricity and use multiple filtration stages to remove microorganisms and contaminants.

Suitable for:

• Rural households

• Areas with unreliable electricity

• Low-maintenance purification

RO Water Purifiers

Reverse Osmosis systems are designed for water with high Total Dissolved Solids (TDS).

Features often include:

• Multi-stage purification

• RO membrane filtration

• UV sterilization

• Activated carbon filtration

• Mineral enhancement

RO + UV Water Purifiers

Premium systems combine:

• Reverse Osmosis

• Ultraviolet disinfection

• Microfiltration

• Mineral enrichment

These products target households with varying water sources and quality.

Smart Water Purifiers

Recent Pureit models include features such as:

• Filter-life indicators

• Smart diagnostics

• Water-saving technologies

• Compact designs

• Digital displays (selected models)

[5]

Pureit incorporates multiple purification technologies depending on the model.

Common technologies include:

Reverse Osmosis (RO)

Removes:

• Heavy metals

• Dissolved salts

• Chemical contaminants

• Fluoride

• Arsenic (selected models)

Ultraviolet (UV)

Uses UV light to inactivate bacteria, viruses, and other microorganisms.

Ultrafiltration (UF)

Filters suspended particles and microorganisms without requiring electricity in some systems.

Activated Carbon

Improves:

• Taste

• Odor

• Chlorine reduction

Mineral Enrichment

Certain premium models add back essential minerals after RO purification to improve taste and maintain mineral balance. [6]

Pureit’s original design philosophy focused on providing:

• Safe drinking water

• Affordable purification

• Easy maintenance

• Accessibility for households with limited infrastructure

• Reliable protection against waterborne diseases

The first-generation products emphasized operation without electricity, addressing conditions common in many parts of South Asia. [7]

Pureit has been sold in several countries over its history, including:

• India

• Bangladesh

• Sri Lanka

• Pakistan

• Indonesia

• Philippines

• Kenya

• Nigeria

• Ghana

• Brazil

• Mexico

• China

Its strongest market remains India, where it has been one of the leading household water purifier brands. [8]

According to the company, Pureit has received multiple industry recognitions for its water purification technologies and has been recognized as a well-known seller of in-home drinking water treatment systems based on independent market research. [9]

During its ownership by Unilever, Pureit was included in the company’s sustainability initiatives aimed at improving access to safe drinking water. Unilever tracked the cumulative volume of safe drinking water enabled through Pureit device sales as part of its public sustainability reporting. [10]

Pureit follows a durable-plus-consumables model:

• Customers purchase the purifier unit.

• Filters and cartridges require periodic replacement.

• Regular servicing and replacement filters generate ongoing maintenance revenue while helping maintain purification performance. [11]

Pureit competes in the household water purification market with brands offering similar technologies, particularly in Asia. Its competitive strengths have included:

• Wide product range

• Multi-stage purification technologies

• Strong distribution network

• Brand recognition

• Products for both entry-level and premium segments

• Focus on water quality and consumer health [12]

Pureit has played a significant role in expanding access to household water purification, particularly in regions where safe drinking water and reliable infrastructure have been inconsistent. The brand evolved from simple gravity-based purifiers into a broad portfolio of advanced RO and UV systems, and its acquisition by A. O. Smith marked a new phase in its development as part of a company focused exclusively on water technology. [15]

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7. Unilever’s Basis of Preparation 2016

8. Pureit

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12. PUREIT | 990698

13. Hindustan Unilever Limited | Unilever

14. Home Care | Our Divisions | Hindustan Unilever Limited Performance Highlights website

15. Pureit – Products, Competitors, Financials, Employees, Headquarters Locations