"in contrast, a mechanical mod is unregulated and works simply by drawing the power of a battery to an atomizer," he said. .

"if the battery in a mechanical mod over-discharges and the device doesn't contain enough air holes to allow the battery to vent, there is a risk of explosion.".imagine a congressional hearing held before media cameras, with reporters all over the us and europe ready with shocking articles about one of the leading causes of death�.arabic