Yes! Like bongs, many dab rigs have an ice catcher at the end of the downstem. As the name implies, an ice catcher holds ice, cooling the vapor as it passes by and before it hits the water reservoir. You should avoid putting ice cubes directly in the water reservoir, as that may create water vapor, which is not something that should be regularly inhaled. Ice cubes in an ice catcher and cold water are the best methods for cooling dab vapor before it is inhaled!