The earliest electronic cigarette can be traced back to 1963. Herbert A. Gilbert of the United States developed a smokeless and smokeless device, which works by heating nicotine solution to generate steam gas.
1965, his R&D patent was officially approved, and Gilbert's concept of smokeless and smokeless invention was first mentioned in the most popular mechanical magazine in the same year. 1967, Gilbert negotiated cooperation with companies interested in this equipment and started quantitative production. Unfortunately, it never really went on the market. Since then, this smokeless and non-cigarette equipment began to fade out of public opinion until it disappeared.
In 2000, Li Han, a doctor of traditional Chinese medicine in Beijing, proposed to dilute nicotine with propylene glycol and atomize the liquid with an ultrasonic device to produce water mist. The liquid nicotine diluent was stored in a device called smoke bomb for carrying.
Electronic eye selection method:
1, smoke output. The structural design, air inlet and air flow passage of the whole electronic cigarette. Excellent e-cigarette design can not only ensure a large amount of cigarettes, but also ensure the stability of cigarettes.
2. Battery life. Battery and atomizer are related, and liquid atomization needs a lot of electricity, so the service life of battery and the time of full charge are the standards to measure the Excellence of an electronic cigarette.
3. The shape of the electronic cigarette. A good product, with refreshing appearance, rigorous design and exquisite workmanship, can give people a pleasant feeling and help them quit smoking successfully.
4. Taste. The current tastes are mainly Marlboro and Chinese, which were originally aimed at foreign cigarettes. Taste is the defect of e-cigarettes, but in recent years, domestic attention to e-cigarettes is getting higher and higher. The taste is also close to real smoke, for example, Chinese style and tobacco taste are close to real smoke. However, women generally prefer mint flavor to flue-cured tobacco and fruit flavor.
5. After sale. This is a very important part of electronic cigarettes. Many inferior e-cigarettes have no after-sales service at all.
The above contents refer to Baidu Encyclopedia-E-cigarette.