keyword

do we breathe out carbon monoxide or carbon dioxide

Monthly search volume and cost-per-click data for "do we breathe out carbon monoxide or carbon dioxide" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=do+we+breathe+out+carbon+monoxide+or+carbon+dioxide&country=us" +--------------+------------------+ | volume | 30 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-12 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
what do we breathe out	2,400	$0	10/20
do we breathe out carbon dioxide or carbon monoxide	30	$0	13/20
do we exhale carbon dioxide or carbon monoxide	30	$0	12/20
do humans produce carbon monoxide when breathing	30	$0	11/20
do you exhale carbon monoxide	30	$0	11/20
breathe out carbon monoxide	30	$0	9/20
do we exhale carbon monoxide or carbon dioxide	20	$0	12/20
humans exhale carbon dioxide or monoxide	20	$0	11/20
we breathe out carbon monoxide	20	$0	9/20
do people exhale carbon monoxide	10	$0	9/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=do+we+breathe+out+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