What are the cheapest filters I can buy that still do a decent job improving indoor air quality for my family?
Download run
Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What are the cheapest filters I can buy that still do a decent job improving indoor air quality for my family?
1 real search · 1 real-search pass
best budget HEPA air purifiers 2026 price replacement filter cost CADR independent testingGoogle ↗
OBSERVEDComparison
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (1)
Classes come from the query-classifier (a local Laya model). 1 of 1 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT1 real searches · gpt-6
best budget HEPA air purifiers 2026 price replacement filter cost CADR independent testing Google ↗
- The 3 Best Budget And Cheap Air Purifiers of 2026 · rtings.com
- The 5 Best HEPA Filter Air Purifiers of 2026 · rtings.com
- Air Purifier Buying Guide · consumerreports.org
- The best budget air purifiers I tested - cheap but good · housefresh.com