What a carb cap does is create a chamber with restricted airflow for your concentrates to vaporize within. Most carb caps have a single hole which helps to create suction within the chamber, and this in turn produces a vortex that helps cool down both the air and vapor trapped inside.
A protective surface between a dab rig and a tabletop helps prevent sticky messes. (Seth McConnell, Denver Post file) 4. Dab Rag/Mat. Though you can certainly dab without these things, your house will possibly become a sticky nightmare, coated in oil that spatters off the nail, stray dabs that fell and immediately stuck to the table, etc. These days, many companies make custom-designed dab mats that can also serve as a place to wipe off your dabber.