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Indoor air while cooking: ventilation and range hoods

Use outdoor-venting exhaust while cooking and keep it running briefly afterward.

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For people who cook at home regularly. Check the hood or exhaust fan manual to see whether air goes outdoors or is merely recirculated. High-temperature cooking also needs fire precautions.

Your try-it-at-home checklist

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Run an outdoors-venting range hood from the start of cooking, if available.
Use rear burners when practical to improve capture of cooking emissions.
Leave the exhaust running for about 10–20 minutes afterward; never leave active cooking unattended.
Without an outdoor-exhaust hood, ventilate safely when weather and outdoor air allow. Clean the grease filter per the manual; leave wiring to professionals.

Your try-it-at-home checklist

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