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Venturi chamber

A feature on a bong that funnels and spins smoke, cooling it and creating a smoother hit. The Venturi chamber is named after the Venturi effect, discovered by Italian physicist Giovanni Battista Venturi.

“This Venturi chamber creates a spiral of smoke when I hit it.”

What is a Venturi chamber?

A Venturi chamber is a funnel-like section of a bong or pipe, which facilitates the Venturi effect of fluid dynamics, in which a fluid or smoke passing through a constricted section drops in pressure, cooling it. 

In bongs or pipes, Venturi chambers usually have three holes that impede the flow of smoke, and once passed through the chamber, the smoke will spiral into a vortex. This has the benefit of cooling smoke, making hits smoother and easier on the lungs.