In response to the BBC’s findings, Sarah Hannafin, head of policy at school leaders’ union, NAHT, says it is “worrying” that vapes have been “normalised”.
She says members are “concerned about how accessible vapes seem to be to young people and how easily they can be concealed”.
A spokesperson for the NASUWT union says if vapes were added to a list of items banned in schools, external, it would mean there would be “less reason to need vape detectors, and would be much more cost-effective for the government”.
Pepe Di’Iasio, general secretary of the Association of School and College Leaders and former head teacher at Wales High School, says vaping is a “significant problem for schools” and he hopes a new upcoming law will help to address the issue.
The Tobacco and Vapes Bill aims to make it harder to market and sell vapes to under 18s.
The Royal College of Paediatrics and Child Health vice-president for policy, Dr Mike McKean, says the bill must be brought in “without further delay”.
He says research on the effects of vaping on young people is still “in its infancy” but that it was clear it was addictive and could lead to “a life-long relationship with nicotine”.
He adds: “I often worry that the full effects are unlikely to be known for many years, and by the time the full adverse effects are apparent it may be too late to reverse.”
A spokesperson from the Department for Education says the government is “taking urgent action to tackle the worrying rise in youth vaping”.
“Our new relationships, sex and health curriculum will teach pupils about harmful substances to make sure they are aware of the risks, and the Tobacco and Vapes Bill will stop vapes from deliberately being marketed to children.”