The battery housing: This is usually made up of metal, wood or plastic. Most tube mods have their buttons sunken in to avoid unintentional “firing.” Some of them also have locks to prevent the same. A switch or a button: A switch or button is used to complete the electric circuit in these mech mods. This is why beginners are not favorable from using them. Mech mods don’t have an extensive range of safety like regulated mods. The circuit in these mech mods simply joins the atomizer to the battery and pressing the switch completes the circuit. A mechanical vaping mod is a simple vaping device that is built using a basic circuit, with no chips or circuitry features that add extra electronic features.