Unvented Gas Stove

Gas cooking with no range hood.

51Moderate burden · out of 100

Cleaner swapVent to outside; run a hood; or induction

How this score is built

100Start
77Chemical hazard 5 × 4.6−23
56.6Everyday exposure 6 × 3.4−20.4
51Persistence 2 × 2.6−5.2, then rounded to 51
ModerateThe band51 sits in 40–59.

What each input rests on

The three ratings behind the score, and the studies each rests on
Input	Rating	Evidence
Chemical hazard	5/10	A random-effects meta-analysis of 41 studies found a summary odds ratio of 1.32 (95% CI 1.18-1.48) for asthma in children with gas cooking, and indoor NO2 associated with current wheeze (OR 1.15). Meta-analysis of the effects of indoor nitrogen dioxide and gas cooking on asthma and wheeze in children · Int J Epidemiol 2013 DOI 10.1093/ije/dyt150 · PMID 23962958 · Abstract · read 2026-10-06
Everyday exposure	6/10	Across 87 homes in California and Colorado, gas and propane burners on high and ovens at 350 F emitted 2.8-6.5 micrograms of benzene per minute, 10-25 times more than electric coil and radiant stoves; in some homes benzene spread to bedrooms above chronic health benchmarks for hours. Gas and Propane Combustion from Stoves Emits Benzene and Increases Indoor Air Pollution · Environ Sci Technol 2023 DOI 10.1021/acs.est.2c09289 · PMID 37319002 · Abstract · read 2026-10-06
Persistence	2/10	unsourced input

Ratings are editorial. A study listed here supports the rating; it did not compute it. How the index is built

What this means for you

It scores as it does mainly because of how much everyday contact it involves. Gas burners emit nitrogen dioxide and fine particulate that can exceed outdoor limits in a closed kitchen. Always vent while cooking.

Evidence strength: strong

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Lower-exposure choices

HEPA-Filtered Indoor AirMinimal · Air

All 13 air entries, highest burden first →