HEY! That's my pry bar! I've been looking for that! Bought it from Harbor Freight in 1983 and there is not another one like that.
A friend of mine has a very beautiful Japanese wife. I was over at their house one day and noted the the exhaust vent over the stove was the type that sucks the air up, blows it through a filter, and then it escapes back into the room through a slot in the top of the hood. She turned on the exhaust fan and I pointed out what was really going on. She was apoplectic with indignation and started yelling at her husband about the outrage. He just chuckled and went back to what he was doing.
The range hood in my house is the type that is designed to exhaust it upwards into the attic or even outside. But there is no duct leading through the cabinet above. The fan exhausts into a blank piece of plywood a half inch away. I have not figured out any way to correct the situation that will not be a huge amount of trouble to implement - except one; I pulled the breaker to the stove. Tabletop toaster/convention oven and the microwave are entirely adequate about 98% of the time.
Talked to one guy who discovered that when they built his house they ducted the clothes dryer exhaust into the eves rather than outside. I wonder if a few hundred pounds of lint behind the soffit is a fire hazard?