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Keyword · US · updated 2026-05-16

do humans exhale carbon monoxide or carbon dioxide

Monthly searches
140
CPC
$0.00
Competition
0

Monthly average for US, from the Google Ads API: the same numbers you'd see in Google Ads.

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Related keywords

Keywords with overlapping search results. Similar volume and high overlap means the same search intent, so you can target either.

Keyword Volume CPC Overlap
do humans breathe out carbon dioxide 480 $0.00 12/20
do we exhale carbon dioxide 320 $0.00 12/20
do humans exhale carbon dioxide 170 $0.00 12/20
humans exhale carbon dioxide 140 $0.00 12/20
humans breathe out carbon dioxide 110 $0.00 12/20
do humans exhale co2 50 $0.00 13/20
human exhale co2 50 $0.00 13/20
humans exhale co2 50 $0.00 13/20
humans breathe out co2 30 $0.00 12/20
why do humans breathe out carbon dioxide 30 $0.00 12/20
For AI agents: query this keyword over HTTP
$ curl "https://api.seodata.dev/v1/keyword?q=do+humans+exhale+carbon+monoxide+or+carbon+dioxide&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt · lookup_keyword over MCP