Brandwave

Water purifier brands:Which are searched most?

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.

Share of Search, September 2026
  1. Coway79.6%
  2. Ro10.7%
  3. LG8.7%
  4. Kent0.92%

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Share of SearchLeaderboard

Compare the water purifier brands people buy. 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.

Share of Search among water purifier brands worldwide, by month

Share of Search by month for Coway, Ro, LG. The figures are in the table below the chart.

View monthly share of search table
MonthCowayRoLGKent
Oct 202578.3%10.5%10.5%0.62%
Nov 202578.1%8.6%12.8%0.47%
Dec 202576.2%10.2%12.5%1.1%
Jan 202676.6%12.6%10.3%0.46%
Feb 202674.8%12.3%12.3%0.55%
Mar 202676.4%12.6%10.3%0.74%
Apr 202676.3%12.5%10.3%0.88%
May 202678.2%10.5%10.5%0.76%
Jun 202677.9%10.5%10.5%1.1%
Jul 202677.9%10.5%10.5%1.1%
Aug 202675.4%12.4%10.2%2%
Sep 202679.6%10.7%8.7%0.92%

This month’s ranking, September 2026

  1. 1.Coway

    79.6%

    Held 1st. 165K estimated branded searches, 0% vs prior month. Share +4.2 points.

  2. 2.Ro

    10.7%

    Held 2nd. 22.2K estimated branded searches, -18.1% vs prior month. Share -1.7 points.

  3. 3.LG

    8.7%

    Held 3rd. 18.1K estimated branded searches, -18.5% vs prior month. Share -1.4 points.

  4. 4.Kent

    0.92%

    Held 4th. 1.9K estimated branded searches, -56.8% vs prior month. Share -1.1 points.

Compare search popularity between leading brands

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.

Global water purifier brands, last 12 months ending September 2026
BrandShare of SearchPeakLowRank
Coway78.3% → 79.6%79.6%Sep 202674.8%Feb 20261st
Ro10.5% → 10.7%12.6%Jan 20268.6%Nov 20253rd → 2nd
LG10.5% → 8.7%12.8%Nov 20258.7%Sep 20262nd → 3rd
Kent0.62% → 0.92%2%Aug 20260.46%Jan 20264th

Each finding as a sentence

  • 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.

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

  1. In September 2026, Coway gained estimated Share of Search among water purifier brands worldwide, from 75.4% to 79.6%.

  2. In September 2026, Ro lost estimated Share of Search among water purifier brands worldwide, from 12.4% to 10.7%.

  3. In September 2026, LG lost estimated Share of Search among water purifier brands worldwide, from 10.2% to 8.7%.

  4. In September 2026, Kent lost estimated Share of Search among water purifier brands worldwide, from 2% to 0.92%.

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