Fume elfbar hazard?

1. Background
Electronic cigarettes originated in China, but are popular in Europe, America and the Middle East. In recent years, Chinese consumers have increased their awareness of health, and electronic cigarettes are being recognized by Chinese consumers instead of cigarettes. As a substitute for cigarettes, e-cigarettes have become more and more popular because of their advantages of "smoking" and taking fragrance. Especially, products such as fume elfbar are loved by many people.
However, as a new product, e-cigarettes face many uncertainties, such as the non-convergence of the concept and evaluation of e-cigarettes, the non-uniformity of product standards, and the non-standardization of the behavior of e-cigarettes, all of which need to be clarified, unified and standardized.
I Basic definition of E-Cigarette
1. Concept of electronic cigarette
Electronic cigarette is a kind of electronic product that converts nicotine containing tobacco oil into steam through atomization and other means.
*Extended reading*
Q: Is a fume elfbar electronic cigarette really a cigarette?
A: The electronic cigarette smokes cigarette oil and exhales fog. In addition to possible nicotine, it is completely different from cigarettes.
2. The structure of the fuse elfbar electronic cigarette
The mainstream electronic cigarette is mainly composed of three parts: the smoke pipe containing cigarette oil (also known as atomizer, atomizer and smoke bomb), evaporation device and battery.
3. Classification of electronic cigarettes
1 ). According to the classification of cigarette oil device, it can be divided into pre-oil filling type and oil filling type:
·Pre-filled electronic cigarette: cigarette oil and atomizer are integrated, disposable and portable. Generally, the pre-oiled integrated atomizer is also called smoke bomb.
·Oil-filled electronic cigarette: The atomizer can be reused, and different brands of cigarette oil can be selected.
2). According to the classification of cigarette stems, they can be divided into mechanical type and electronic type:
Mechanical type: there is no control chip in the cigarette rod, which has a long service life but is not easy to control.
·Electronic type: There is a control chip in the cigarette rod, which can control the voltage, power and temperature, but the chip life is limited.
3 ). According to power classification, it can be divided into small power type and large power type:
·Small smoke: generally through the mouth, the atomizer and the battery can be connected to start working without the start button. fume elfbar and others are disposable electronic cigarettes, which belong to small cigarettes.
·Big smoke: Mainly use 18650 type lithium battery, which is large in size, and has obvious characteristics of atomizer and cigarette rod.
4 ). Electronic cigarette oil
Electronic cigarette oil is mainly composed of three substances: nicotine, essence and flavor, and PG/VG.
The US Food and Drug Administration (FDA) defines PG as "generally safe for human body". PG (propylene glycol) is the carrier of essence, which can enhance the taste of tobacco oil. After heating, it will produce a small amount of fog with a certain sense of throat.
Like PG, VG (vegetable glycerin or glycerol) is also a widely used raw material in daily life. The main role of VG in tobacco oil is to produce "fog".
Flavor essence is generally food grade, which has little impact on human body.
5 ). What effect does electronic cigarette have on people?
1. What is the impact on people who smoke a full elfbar e-cigarette?
The main influence substance is nicotine. Nicotine is an addictive substance, which may increase heart rate and blood pressure; Ingestion of large doses (more than 50mg) in a short time will cause vomiting and nausea; However, regular cigarette oil will control the dose of nicotine within a safe range, even without nicotine, which has little impact on people.
Can electronic cigarettes produce harmful substances? Because the electronic cigarette uses the physical atomization technology, it will not produce new substances and hazards. Generally speaking, the maximum temperature of mainstream e-cigarette equipment is 300~400 ℃, while the temperature required for organic matter cracking reaction is 700~800 ℃. It can be seen that the compliant e-cigarette equipment will not produce harmful substances through cracking reaction. For example, fuel elfbar and other products
In contrast, the harm of original cigarettes is much greater. When the original cigarette burns, the temperature reaches 600~900 ℃. Under the condition of incomplete combustion, it will produce many harmful substances, such as aromatic amines (carcinogenic), polycyclic aromatic hydrocarbons (carcinogenic), heterocyclic amines (carcinogenic), metals (carcinogenic, DNA damage), and radioactive substances (carcinogenic). Its mixture is smoke tar. According to the official data of WHO, there are more than 4000 chemicals in tobacco smoke, including at least 250 known harmful substances and more than 50 known carcinogens. [1]
In 2012, Lauterbach [2] and others compared the release of aerosol chemical components of electronic cigarettes and mainstream cigarette smoke in an experiment.
Among them, the emission of harmful substances from electronic cigarettes is much lower than that of cigarettes. Formaldehyde is 8.6% of that of cigarettes. The emission of many other harmful components is 98% less than that of traditional cigarettes. The NHS (National Health Service System of the United Kingdom) once said that the harm of electronic cigarettes is 95% lower than that of cigarettes.
[1] The World Health Organization's public live report on tobacco.
[2] Lauterbach J H,Laugesen M and Ross J D. Suggested protocol for estimation of harmful andpotentially harmful constituents in mainstream aerosols generated by electronicnicotine delivery systems[R]. Poster 1860 presented at the 51st annual meetingof the Society of Toxicology in San Francisco, 2012.