Bongs are large pipes with a water chamber in addition to the bowl and pipe. Glass bongs are best used at a table. When the user takes a draw, the smoke goes through the water chamber, which cools and filters the smoke. The result is a cooler, purer, and better-tasting smoke session. The advantage of using a glass bong is that the user gets a cooler and cleaner stream of smoke.
Both bongs and dab rigs serve as a means to consume herb, but they do so in different ways. They each have their purpose; bongs are intended to be used with dried flower, while dab rigs are designed for use with concentrates and wax.