Some anecdata from my kitchen, which has an air quality monitor positioned approx. 4 meters away from the stove:

- Most days when cooking PM2.5 doesn't exceed 5ppm.

- I accidentally burned some vegetable oil this week, and PM2.5 shot up to around 70ppm.

- I fried up pancetta a little too hot a few months ago, rendering the fat entirely, and both PM2.5 and PM10 went up to >999ppm.