first, the good. you can see what it captured:
but check this out:
closeup of area the thermapen probe is pointing at in the previous pic:
what a mess! most of that is from this cooking session. i cooked several burgers over relatively high heat. i was cooking for over 20 minutes i bet.
unfortunately, the blower in my range hood died, so i have no extraction. i'm back to opening up the windows. it was smoky in the kitchen. i think a lot of this is actually mist that would have normally been extracted by my hood.
this kind of confirms it:
there's a lot of oil even in the pan's shadow.
i guess even after all these pictures, i can't give you a clear, conclusive demo because my hood's broken. sorry. the only thing that's clear is frywall doesn't save you if you have no fume exraction.
i definitely do remember better results in the past when my blower worked. no pictures to say exactly how good though.
also, i've never used one of those screen things, so i can't say how they compare.