Oh, were they dusting for mites? I thought they were clotting. Yes, corn starch won't work for mites either. Get some permethrin, it less than 10 bucks at the feed store
I'm sorry about that, I think Teflon pans have to reach 400 degrees before they release fumes but I'm not sure. We're they heated that hot?
Febreeze can also kill birds.