Coway vs IQAir:Which is more popular?
In September 2026, IQAir had more branded searches than Coway among air purifier brands worldwide. IQAir had about 1.5 million branded searches, while Coway had 248,000. IQAir made up 71.7% of all air purifier brand searches we track, and Coway accounted for 11.8%. When we asked ChatGPT and Google AI Overviews about air purifier brands, Coway appeared in four of the five answers and IQAir in one. Coway was mentioned before IQAir in every answer.
Who do people search for more?
IQAir, about 6 searches for every 1 for Coway
Who does AI mention more?
Coway, mentioned in 4 of 5 answers, IQAir in 1
Who does AI recommend more?
Coway, named ahead of IQAir in every answer
Follow Coway vs IQAir and get free monthly updates on what changed
By continuing you'll get index updates and occasional product news from Brandwave. Unsubscribe any time. Privacy
Top air purifier brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Coway was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. IQAir was mentioned in one out of five: in one of the three ChatGPT answers, but not in either of the two Google AI Overviews. Coway was listed before IQAir in every answer.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Levoit5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers- Coway4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Blueair3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Winix3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers- IQAir1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
AirDoctor0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about air purifier brands
5 answers
Asked ChatGPT
“Which air purifier brand should I buy?”
Asked ChatGPT
“What are the best air purifier brands?”
Asked ChatGPT
“What's the best air purifier brand for allergy relief?”
Searched Google, AI Overview
“best air purifier”
Searched Google, AI Overview
“air purifier for allergies”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.
Is Coway or IQAir more popular in search?
This chart shows how often people search Google for Coway and IQAir by name. Each line represents a brand's share of searches for all six air purifier brands we track, month by month, from English-language searches worldwide.
Share of searches by month for IQAir, Coway. The figures are in the table below the chart.
View monthly share of searches table
| Month | IQAir | Coway | Levoit | Blueair | Winix | AirDoctor |
|---|---|---|---|---|---|---|
| Oct 2025 | 14.6% | 38.2% | 26.7% | 17% | 2.8% | 0.69% |
| Nov 2025 | 33.2% | 30.2% | 18.8% | 14.6% | 2.4% | 0.89% |
| Dec 2025 | 42.3% | 24% | 19.7% | 11.3% | 2.1% | 0.63% |
| Jan 2026 | 25.7% | 30.8% | 26.4% | 13.8% | 2.8% | 0.46% |
| Feb 2026 | 20.8% | 30.1% | 29.5% | 16.4% | 2.7% | 0.54% |
| Mar 2026 | 16.7% | 34.1% | 28.8% | 16% | 3.9% | 0.54% |
| Apr 2026 | 17.3% | 34.1% | 29.7% | 14.9% | 3.3% | 0.66% |
| May 2026 | 12.1% | 36.6% | 32.2% | 15.1% | 2.7% | 1.2% |
| Jun 2026 | 9.5% | 35.3% | 33.4% | 17.7% | 2.6% | 1.4% |
| Jul 2026 | 26.8% | 28.2% | 27.5% | 14.3% | 2.4% | 0.86% |
| Aug 2026 | 37.1% | 24.8% | 23.8% | 11.9% | 1.8% | 0.57% |
| Sep 2026 | 71.7% | 11.8% | 10.2% | 5.3% | 0.86% | 0.23% |
How has the Coway and IQAir comparison changed over the last 12 months?
3 findings
- The lead changed hands 3 times in the 12 months ending September 2026: IQAir took it in November 2025, Coway took it in January 2026, IQAir took it in August 2026.
- Across the 12 months ending September 2026, Coway’s share of searches among air purifier brands worldwide moved from 38.2% to 11.8%, and its estimated monthly branded searches held steady at 248K.
- Across the 12 months ending September 2026, IQAir’s share of searches among air purifier brands worldwide moved from 14.6% to 71.7%, and its estimated monthly branded searches moved from 94.7K to 1.5M.
How did search popularity change for air purifier brands worldwide in September 2026?
2 changes
In September 2026, IQAir gained share of searches among air purifier brands worldwide, from 37.1% to 71.7%.
In September 2026, Coway lost share of searches among air purifier brands worldwide, from 24.8% to 11.8%.
How are branded searches counted?
7 search terms
Brandwave collects information about searches that people make online using Coway’s and IQAir’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.
Other head-to-heads among air purifier brands
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.