New research has found lowering the nicotine in vapes leads to users taking longer and bigger puffs

The study found when people who preferred using a 5 percent nicotine device were switched to lower device, their puffing duration and inhaled volume were larger.

Researchers believe this different behaviour will potentially lead to increased exposure to toxicants in the vape.

They also say reduced nicotine delivery might still be beneficial due to the marketing of being less addictive.