Real ChatGPT answer · index seedxGi7yi8Gx6McompleteSports and outdoors · camping and hikinginformational
What is the thermodynamic mechanism behind down fill power ratings, and why does a hydrophobic 800-fill goose down sleeping bag retain its loft better in damp sub-freezing conditions than untreated down?
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The searches the AI actually ran for this prompt.
SEED QUERY
What is the thermodynamic mechanism behind down fill power ratings, and why does a hydrophobic 800-fill goose down sleeping bag retain its loft better in damp sub-freezing conditions than untreated down?
1 real search · 1 real-search pass
down fill power measurement cubic inches per ounce standard IDFB down cluster loft moisture hydrophobic treatment damp conditions thermal insulationGoogle ↗
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ChatGPT real searches (1)
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Searches and sources
ChatGPT1 real searches · gpt-6
down fill power measurement cubic inches per ounce standard IDFB down cluster loft moisture hydrophobic treatment damp conditions thermal insulation Google ↗
- FILL POWER METHOD NUMBERS: IDFB PART 10B. EN 1213 · alliedfeather.com
- What Is Down Fill Power? · rei.com