The exhaust fan
In our office, the kitchen exhaust fan blows the smoke from the cooktop–back into the kitchen.
It’s a closed loop, a palliative, a noisy device that doesn’t do much except make you feel like at least you’re trying.
Most of the exhaust fans in our lives are actually part of a closed system. The detritus, pain or actions we share don’t go very far away before they turn around and head back toward us.