AirDoctor vs Coway:Which is more popular by branded search?
In August 2026, Coway had more branded searches than AirDoctor among air purifier brands worldwide. Coway was estimated to have 253K branded searches compared to AirDoctor’s 15.7K, and held a 25% Share of Search versus AirDoctor’s 1.6%. Worldwide · English terms: these are worldwide searches for English-language branded terms.
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Which is more popular in search, AirDoctor or Coway?
Compare brands that offer air purifiers for homes. 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 by month for Coway, AirDoctor. The figures are in the table below the chart.
View monthly share of search table
| Month | IQAir | Coway | Levoit | Blueair | AirDoctor |
|---|---|---|---|---|---|
| Oct 2025 | 14.9% | 38.7% | 27% | 17.4% | 2% |
| Nov 2025 | 33.5% | 30.4% | 18.9% | 14.9% | 2.2% |
| Dec 2025 | 42.8% | 24.3% | 19.9% | 11.5% | 1.4% |
| Jan 2026 | 26.2% | 31.3% | 26.8% | 14.2% | 1.5% |
| Feb 2026 | 21.2% | 30.5% | 29.9% | 16.8% | 1.6% |
| Mar 2026 | 17.2% | 34.9% | 29.4% | 16.5% | 2% |
| Apr 2026 | 17.6% | 34.5% | 30.1% | 15.3% | 2.5% |
| May 2026 | 12.2% | 36.9% | 32.5% | 15.4% | 3.1% |
| Jun 2026 | 9.7% | 35.8% | 33.8% | 18.1% | 2.6% |
| Jul 2026 | 27.2% | 28.5% | 27.8% | 14.6% | 1.9% |
| Aug 2026 | 37.4% | 25% | 23.9% | 12.1% | 1.6% |
| Sep 2026 | — | — | — | — | — |
How has the AirDoctor and Coway comparison changed over the last 12 months?
3 findings
- Coway was ahead of AirDoctor in every measured month of the 11 months ending August 2026.
- Across the 11 months ending August 2026, AirDoctor’s estimated Share of Search among air purifier brands worldwide moved from 2% to 1.6%, and its estimated monthly branded searches moved from 12.6K to 15.7K.
- Across the 11 months ending August 2026, Coway’s estimated Share of Search among air purifier brands worldwide moved from 38.7% to 25%, and its estimated monthly branded searches moved from 248K to 253K.
How did search popularity change for air purifier brands worldwide in August 2026?
3 changes
In August 2026, IQAir overtook Coway to take the highest estimated Share of Search among air purifier brands worldwide, at 37.4%.
In August 2026, Coway lost estimated Share of Search among air purifier brands worldwide, from 28.5% to 25%.
AirDoctor’s estimated Share of Search among air purifier brands worldwide has lost ground for 3 months in a row, from 3.1% to 1.6% in August 2026.
How each brand is measured
Brandwave collects information about searches that people make online using AirDoctor’s and Coway’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.