The big particles are not what is most dangerous. Range hoods that recirculate air are not helpful. All kitchens should have externally-exhausted vent hoods,

The big particles are not what is most dangerous. Range hoods that recirculate air are not helpful. All kitchens should have externally-exhausted vent hoods, and it's even more important when using gas ranges, since a lot of harmful combustion byproducts are also being created (NO2, CO, etc). Sadly as you point out, this is far less common than it should be.