New Australian research published this morning says flavoured e-cigarettes can kill lung cells.
The study's lead researcher, Miranda Ween from the School of Medicine at Adelaide University, told Morning Report the study was investigating whether or not the same flavour, (apple was used for the research), bought from different suppliers could have different effects.
"What we found was that each of the flavours actually had very different chemicals in it and that they were all capable of killing airway cells and affecting immune cells even when there wasn't any nicotine in it."
Some of the damage to lung cells can be repaired by the body but it also introduces the possibility there would be errors in the repair process, Ms Ween said.
Read more about vaping here:
- The New Zealand government is preparing to introduce a bill on vape regulation, which would limit vape flavours to tobacco, menthol and mint.
- And Auckland secondary school principals are backing the government's plan to ban most vape flavours, saying vaping is reaching epidemic levels among their students.
- But an American study out on 17 September found users of mint and menthol e-cigarettes are exposed to high levels of the carcinogen pulegone.
- Despite this, a New Zealand study showed that smokers who combine vaping with nicotine patches are nearly twice as likely to quit as those using other cessation methods.
- And earlier this year Associate Minister of Health Jenny Salesa said vaping could be the breakthrough to reduce high smoking rates for young Māori women.
- A website that provides information and advice on vaping in New Zealand was launched in June.
The research was a first step and the next stage for her team would be to isolate which particular chemicals are causing harm.
In light of the research becoming available, governments will be interested in regulation, she said.
The United States - where the deaths of several people are being attributed to vaping - is looking at restricting certain flavours in e-cigarettes and the rest of the world will be watching what happens and may look at following suit, she said.
New Zealand's director-general of health, Dr Ashley Bloomfield, said last week the government is preparing a bill on vape regulation, which will limit flavours to tobacco, menthol and mint.
It was possible safer vapes could be developed in the future but it would take a lot of research to achieve this, Ms Ween said.
Most of the data on vaping, including theirs, showed vaping was probably less dangerous than smoking but most are short-term studies so the long-term effects aren't understood.
If e-cigarettes were used by former smokers in the short-term they would probably be safe but the goal was to give up altogether.
Ms Ween said people who are trying to quit smoking should stick to traditional nicotine replacement therapies.