---
title: "Water purifier brands: Which are searched most?"
description: "Compare the water purifier brands people buy. Share of Search among Coway, Ro, LG and Kent, the water purifier brands Brandwave compares worldwide, using the same methodology, market, and reporting period. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time."
canonical: "https://gobrandwave.com/demand/global-en/categories/water-purifier-brands"
publisher: "Brandwave"
---

# Water purifier brands: Which are searched most?

Compare the water purifier brands people buy. Share of Search among Coway, Ro, LG and Kent, the water purifier brands Brandwave compares worldwide, using the same methodology, market, and reporting period. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

## Key facts

- **Competitive set**: Water purifier brands
- **Market**: Global
- **Brands compared**: 4
- **Month measured**: Sep 2026
- **Highest Share of Search**: Coway, 79.6%

## Which brand is most popular in search among water purifier brands worldwide?

- In September 2026, Coway was the most searched among water purifier brands worldwide, with an estimated 165K branded searches and 79.6% estimated Share of Search within this set.
- Ro is in 2nd place, 68.9 percentage points behind at 10.7% Share of Search.
- Across the 12 months ending September 2026, Coway’s estimated Share of Search among water purifier brands worldwide increased from 78.3% to 79.6%.
- Across the 12 months ending September 2026, LG’s estimated Share of Search among water purifier brands worldwide decreased from 10.5% to 8.7%.
- Across the 12 months ending September 2026, Coway’s estimated Share of Search among water purifier brands worldwide peaked at 79.6% in September 2026 and was lowest at 74.8% in February 2026.
- Across the 12 months ending September 2026, Ro’s estimated Share of Search among water purifier brands worldwide peaked at 12.6% in January 2026 and was lowest at 8.6% in November 2025.
- Across the 12 months ending September 2026, LG’s estimated Share of Search among water purifier brands worldwide peaked at 12.8% in November 2025 and was lowest at 8.7% in September 2026.
- Across the 12 months ending September 2026, Kent’s estimated Share of Search among water purifier brands worldwide peaked at 2% in August 2026 and was lowest at 0.46% in January 2026.
- Across the 12 months ending September 2026, Ro rose from 3rd to 2nd among water purifier brands worldwide.
- Across the 12 months ending September 2026, LG fell from 2nd to 3rd among water purifier brands worldwide.
- Across the 12 months ending September 2026, Kent held steady: its estimated Share of Search among water purifier brands worldwide moved less than 0.5 percentage points.

## Compare search popularity between leading brands

- [Coway vs Ro: compare search popularity](/demand/global-en/compare/coway-vs-ro-health): 79.6% against 10.7% Share of Search.
- [Coway vs LG: compare search popularity](/demand/global-en/compare/coway-vs-lg): 79.6% against 8.7% Share of Search.
- [Ro vs LG: compare search popularity](/demand/global-en/compare/lg-vs-ro-health): 10.7% against 8.7% Share of Search.

## How did search popularity change for water purifier brands worldwide in September 2026?

- In September 2026, Coway gained estimated Share of Search among water purifier brands worldwide, from 75.4% to 79.6%.
- In September 2026, Ro lost estimated Share of Search among water purifier brands worldwide, from 12.4% to 10.7%.
- In September 2026, LG lost estimated Share of Search among water purifier brands worldwide, from 10.2% to 8.7%.
- In September 2026, Kent lost estimated Share of Search among water purifier brands worldwide, from 2% to 0.92%.

## Share of Search ranking

| Rank | Brand | Share of Search | Estimated monthly branded searches | Change vs prior month | Owned by |
| --- | --- | --- | --- | --- | --- |
| 1 | Coway | 79.6% | 165K | 0.0% | Coway |
| 2 | Ro | 10.7% | 22.2K | -18.1% | Ro |
| 3 | LG | 8.7% | 18.1K | -18.5% | LG |
| 4 | Kent | 0.92% | 1.9K | -56.8% | Kent |

## Historical estimated branded-search demand

| Month | Brand | Estimated monthly branded searches | Share of Search | Rank |
| --- | --- | --- | --- | --- |
| Oct 2025 | Coway | 165K | 78.3% | 1 |
| Oct 2025 | LG | 22.2K | 10.5% | 2 |
| Oct 2025 | Ro | 22.2K | 10.5% | 3 |
| Oct 2025 | Kent | 1.3K | 0.62% | 4 |
| Nov 2025 | Coway | 165K | 78.1% | 1 |
| Nov 2025 | LG | 27.1K | 12.8% | 2 |
| Nov 2025 | Ro | 18.1K | 8.6% | 3 |
| Nov 2025 | Kent | 1K | 0.47% | 4 |
| Dec 2025 | Coway | 135K | 76.2% | 1 |
| Dec 2025 | LG | 22.2K | 12.5% | 2 |
| Dec 2025 | Ro | 18.1K | 10.2% | 3 |
| Dec 2025 | Kent | 1.9K | 1.1% | 4 |
| Jan 2026 | Coway | 165K | 76.6% | 1 |
| Jan 2026 | Ro | 27.1K | 12.6% | 2 |
| Jan 2026 | LG | 22.2K | 10.3% | 3 |
| Jan 2026 | Kent | 1K | 0.46% | 4 |
| Feb 2026 | Coway | 135K | 74.8% | 1 |
| Feb 2026 | LG | 22.2K | 12.3% | 2 |
| Feb 2026 | Ro | 22.2K | 12.3% | 3 |
| Feb 2026 | Kent | 1K | 0.55% | 4 |
| Mar 2026 | Coway | 165K | 76.4% | 1 |
| Mar 2026 | Ro | 27.1K | 12.6% | 2 |
| Mar 2026 | LG | 22.2K | 10.3% | 3 |
| Mar 2026 | Kent | 1.6K | 0.74% | 4 |
| Apr 2026 | Coway | 165K | 76.3% | 1 |
| Apr 2026 | Ro | 27.1K | 12.5% | 2 |
| Apr 2026 | LG | 22.2K | 10.3% | 3 |
| Apr 2026 | Kent | 1.9K | 0.88% | 4 |
| May 2026 | Coway | 165K | 78.2% | 1 |
| May 2026 | LG | 22.2K | 10.5% | 2 |
| May 2026 | Ro | 22.2K | 10.5% | 3 |
| May 2026 | Kent | 1.6K | 0.76% | 4 |
| Jun 2026 | Coway | 165K | 77.9% | 1 |
| Jun 2026 | LG | 22.2K | 10.5% | 2 |
| Jun 2026 | Ro | 22.2K | 10.5% | 3 |
| Jun 2026 | Kent | 2.4K | 1.1% | 4 |
| Jul 2026 | Coway | 165K | 77.9% | 1 |
| Jul 2026 | LG | 22.2K | 10.5% | 2 |
| Jul 2026 | Ro | 22.2K | 10.5% | 3 |
| Jul 2026 | Kent | 2.4K | 1.1% | 4 |
| Aug 2026 | Coway | 165K | 75.4% | 1 |
| Aug 2026 | Ro | 27.1K | 12.4% | 2 |
| Aug 2026 | LG | 22.2K | 10.2% | 3 |
| Aug 2026 | Kent | 4.4K | 2% | 4 |
| Sep 2026 | Coway | 165K | 79.6% | 1 |
| Sep 2026 | Ro | 22.2K | 10.7% | 2 |
| Sep 2026 | LG | 18.1K | 8.7% | 3 |
| Sep 2026 | Kent | 1.9K | 0.92% | 4 |

## What is being compared

- **Coway**: Measured on the search term “coway”.
- **Kent**: Measured on the search term “kent fire”.
- **LG**: Measured on the search term “lg com”.
- **Ro**: Measured on the search term “ro health”.

- [Coway](/demand/global-en/brands/coway)
- [Kent](/demand/global-en/brands/kent)
- [LG](/demand/global-en/brands/lg)
- [Ro](/demand/global-en/brands/ro-health)

## Methodology

- [How is branded search demand measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused.

## Frequently asked questions

### Which brand is most popular in search among water purifier brands worldwide?

In September 2026, Coway was the most searched among water purifier brands worldwide, with an estimated 165K branded searches and 79.6% estimated Share of Search within this set. These are worldwide searches for English-language branded terms.

## Cite this page

Brandwave. "Water purifier brands: Which are searched most?". https://gobrandwave.com/demand/global-en/categories/water-purifier-brands

This page is also available as HTML at https://gobrandwave.com/demand/global-en/categories/water-purifier-brands. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.