The new consumer report of Blue Cave, reported on December 27. According to foreign news reports, when Dr. Sandro Demaio took out his mobile phone to write a tweets about second -hand electronic cigarettes, he did not expect that he would be charged to spread the error message.

"We see the notification of electronic smoke toxicity caused by contact with second -hand e -cigarettes," he wrote. "Children who are only 12 months old will inhale the steam of other people around. Including cars, even public places. Poisoning because of high addiction and poisonous nicotine."

He quickly received a lot of reply -some supported, but many people accused Demaio, CEO of Vichealth, the chief executive of high -level public health experts and government support, spreading fake news.

"I understand, and I am spreading the error message again." A account claiming to belong to the Director -General of the British Electronic Cigarette Industry Association. "There is no evidence that the electronic cigarette will cause harm to other people around you."

As the use of electronic cigarettes continues to grow strongly, gas solids produced by electronic cigarettes are now very common in Australian cities, rising to 11%in 2019, of which young people have grown significantly. The health authorities have warned their potential direct hazards.

But people know very little about second -hand electronic cigarettes. This leads to major inconsistencies in the way of reading evidence in different governments.

The British National Health Service suggested that electronic smoke steam does not cause the same risk as second -hand smoke, partly because the release of the release of nicotine can be ignored.

On the other hand, the Ministry of Health of the New South Wales prohibits electronic cigarettes in the car when children are present to protect them from any second -hand risk.

Unlike cigarettes, electronic cigarettes will not burn tobacco. Instead, they use heat to evaporate liquid for inhalation.

A study measured the gas solution of the two electronic cigarette users and compared it with the second -hand cigarette smoke. It was found that the level of ultra -fine particles produced by electronic smoke was much lower, but the level of nano particles was much higher. It is unclear what risks these will bring.

Another study found that the use of electronic cigarettes will increase the fine particles in the room air.

"Electronic cigarette itself will not release chemicals in the environment, and only the chemicals that users call out, and so far, this exhaled gas has not proven to produce any toxic substances that may affect the health of the onlookers." Queen Mary's Tobacco Dependence Research Group. Professor Peter Hayek, director of the Institute, said.

Dema did not agree. "We have to learn the lessons of tobacco. Smoke wandering in the air, toxins stay on the surface, car and closed space," he said. "Children breathe that kind of air."

He told the Times that his tweet refers to the data from the New South Wales Poison Information Center. But Dr. Darren Roberts, the center of the center of the center, said the data actually refers to the poisoning caused by children using electronic cigarettes or drinking liquid directly. The center does not collect data from people who come into contact with second -hand steam.

Nevertheless, Roberts did worry about second -hand electronic cigarettes.

"Studies have shown that many of these chemicals will eventually enter the air and appear on the surface, including baby clothes and toys. Children may be exposed to this," he said. "We are still studying and getting more information. But we know that some of these chemicals will cause problems when fully exposed."

We don't know if the second -hand electronic cigarette is harmful to the reason because the e -cigarettes have been listed for more than ten years.

Simon Chapman, a professor of public health at the University of Sydney, wrote a chapter about electronic cigarettes. He pointed out that from smoking to the evidence of general hazards, it took 40 years -it took 40 years -more than 20 more than 20 years -more than 20 more after 20 In the year, second -hand smoke was also harmful.

Unlike cigarettes, electronic cigarettes have a variety of flavors. These chemical spices are often evaluated as safety when eating, rather than the safety of inhalation. It is unclear what risks these chemicals will bring (if so).

"This is one of the really important stories," Chapman said.

Perhaps the most important new data about second -hand contact comes from a study published on Thorax this year.

Studies have found that children who live with electronic cigarette users report shortage of breathing or bronchitis symptoms is about 50%higher.

However, this study uses a survey of self -report -prone to errors -and cannot show causal relationships. Most children have also been exposed to second -hand tobacco tobacco.

Demaio said the question is whether we should wait for the solid evidence before taking action.

"We did not conduct any long -term research on the safety of these products or the safety of second -hand contact. We spent 20 years before realizing that it was hurting the next generation of children who lived with other smokers."

"What I worry about is that we still need two or three years to realize the same thing."