This is the thing I think is missing from all of these analyses; does the fume hood vent to the outside? I have lived in plenty of houses/apartments/condos with gas stoves, and external venting has always been a hard requirement for me.

The Twitter thread links to this study:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4909253/

Which finds that fume hoods do not help:

>NO2 concentrations in the kitchen and bedroom did not significantly change following ventilation hood installation.

These are outdoor vented:

>Ventilation hood: Range hoods [BROAN® (Hartford, WI, USA) Range Hood model numbers 433611, 403001, or 423001] with ventilation fans to the outdoors and secure seal to minimize energy loss were installed over existing gas stoves.

I keep seeing this study referenced. However, I find it pretty glaring that the Range Hoods they used are not even adequately rated for gas stove usage.

For instance, they listed "flow rates for the models used as 160–220 cubic feet per minute".

These are range hoods typically used for electric models - not gas. 400 CFM is generally considered a baseline hood for gas stoves (100 CFM / 10000 BTU).

I would feel much more confident in their results had they used more powerful range hoods that were more appropriate for the stoves in question.

I've never had a kitchen with a 400CFM+ range hood, despite 50-50 gas appliances. All but one have been micro-hood combos and those don't move much air at all.

I hope they all do, where they exist anyway. But that’s a far more open system than a wood/coal stove which only has small air intakes, sometimes configured to draw from outside so the whole system is sealed from inside air

As an aside, I lived in an old house with electric range which just blew the air up at a 45 deg angle, but as people have gotten taller, it would just blow into my face.

Not if you have a real range hood

While cooking for sure, but what's interesting is that because these things leak (parent article) unless you have your range-hood running all the time you're probably pumping at least a little bit of natural gas into your kitchen 24x7.

So an improvement yes, but not a complete fix.