What LLMs cite

Best whole-home air purification systems for allergies in Cincinnati?

From recent prompt runs · United States · Updated November 3, 2026

GEOGrow tested this high-intent customer question across Gemini, ChatGPT, and Perplexity. Rankings below show which companies appeared most often in those responses — not who is independently the best.

Top brand

AprilAire

Leads across all key metrics

AI engines mentioning

2 of 3

AprilAire appears in 2 of 3 AI engines

#1 recommendations

1

AprilAire was the #1 recommendation once.

AI answer share

67%

AprilAire appears in 67% of answers in our tests

Top AI Answers

Which companies appear most often in AI responses?

Updated November 3, 2026

Company AI Answer Share across AI engines
#CompanyAI engines mentioning#1 recommendationsAI answer share
1AprilAire Claim your company2 of 3167%
2Apollo Home Claim1 of 3133%
3Carrier Infinity Air Purifier Claim1 of 3133%
4IQAir Claim2 of 3067%
5Thomas & Galbraith Heating, Cooling & Plumbing Claim1 of 3033%
6Aprilaire Whole House Air Cleaner Claim1 of 3033%
7APCO Whole House Air Purifier Claim1 of 3033%
8Austin Air Claim1 of 3033%

What Each AI Recommended

Recent answer snapshots by engine.

What LLMs cite

Sources cited in the most recent prompt runs for this question. The mix varies by engine.

View full citation index →

Related questions

See how this market performs for the questions customers are asking AI.

13 prompts

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Who's Winning in AI?

AI Leaderboard · Based on this buyer question

AprilAire currently leads this conversation.

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How We Measure AI Answer Share

AI Answer Tracker by GEOGrow measures how companies appear when high-intent customer questions are asked across supported AI platforms. Results are observational snapshots and can vary by model, location, personalization, source availability, and date.

AI Answer Share is weighted recommendation appearances divided by all possible recommendation opportunities. Rankings shown here represent the responses collected during the stated research period and are not endorsements by GEOGrow. Method: 3 independent AI observations.

Question tested
Best whole-home air purification systems for allergies in Cincinnati?
Market
United States
AI engines
Gemini, ChatGPT, and Perplexity
Research date
November 3, 2026