Real ChatGPT answer · index seedlGyzP1sJu6McompleteTelecom and utilities · energy efficiencycomparison

MERV 11 versus MERV 13 furnace filters for reducing allergy triggers without straining our HVAC system

ChatGPTgpt-61 query11/1/2026
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Fan-out diagram

The searches the AI actually ran for this prompt.

SEED QUERY
MERV 11 versus MERV 13 furnace filters for reducing allergy triggers without straining our HVAC system
1 real search · 1 real-search pass
MERV 11 vs MERV 13 HVAC filter pressure drop airflow manufacturer guidance ASHRAE EPAGoogle ↗
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)
Short factOther / navigationalComparison100%ConsequenceReasonDefinitionInstructionYes / no

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
MERV 11 vs MERV 13 HVAC filter pressure drop airflow manufacturer guidance ASHRAE EPA Google ↗
  1. High-MERV Filters · basc.pnnl.gov
  2. Mechanical Air Filters · ashrae.org
  3. EPA's MERV filter guidance · epa.gov

Queries

1 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
MERV 11 vs MERV 13 HVAC filter pressure drop airflow manufacturer guidance ASHRAE EPA
OBSERVED
Google ↗
AI Mode ↗
—Comparison——1x
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