Concerned dad Steven said the youngster has been struggling to breathe and vomiting since the incident took place.
Children are often caught vaping at school. Photo / Getty Images
"The innocence about it is so dangerous. His friend brought it to school and told him to suck on it because it tastes like grapes," he told the Herald Sun.
"The vape was empty by the time we picked them up from school."
The horror episode comes months after it was revealed school‐age children are being exposed to an increasing number of vaping and e‐cigarette videos on TikTok.
University of Queensland researchers analysed more than 800 videos featuring the modern smoking practice.
As well as being viewed more than 1.1 billion times, 63 per cent portrayed vaping and e‐cigarettes in a positive light.
Lead author and PhD candidate Tianze Sun said there had been a massive increase in the number of young people using vapes and e‐cigarettes in recent years.
"This could partly be due to exposure from friends and influencers on social media," she said.
The hashtag #vape has had more than 5 billion views on TikTok alone.