A History of Electronic Cigarette
The earliest e-cigarette can be traced to 1963 in which American Herbert A. Gilbert who invented "a smokeless non-tobacco cigarette". This device produced warm, flavored steam without combustion. 1965, the patent was granted and Gilbert's invention was firstly mentioned in one of the most popular mechanics magazines. 1967, Gilbert tried to discuss business cooperation with several companies and hoped to put his invention into production, but unfortunately, it was never commercialized. Since then, this smokeless non-tobacco cigarette was starting to fade from the public consciousness, and disappeared finally.
2004, the e-cigarette was first introduced to the Chinese domestic market. Hon Lik, a Chinese pharmacist who is credited with the invention of the modern e-cigarette. Lik was a heavy smoker and determined to find an effective way of quit smoking after his father died of lung cancer caused by smoking. 2004, he invented the first e-cig device by vaporizing liquid containing nicotine. Next year, Hon Lik put his design into production and sold for the first time in world wide. Since 2005, Ruyan started exporting its products, and received its first international patent in 2007. In the years that followed, the electronic cigarette industry began to enter the fast lane of developing, and the second generation and third generation of e-cigarette products come out to leading global e-cig market trends.
The first generation three-part e-cigarettes were a battery, an atomizer, and a cartridge which priced at about 0.5~1 dollar. One cartridge is approximately equivalent to 10~15 cigarettes. The e-liquid in a cartridge refill mainly contains propylene glycol, nicotine and flavorings. Atomzier uses ultrasonic waves to turn e-liquid in the cartridge into a vapor. Most batteries contain an electronic airflow sensor triggered automatically by drawing breath through the device. Atomizer and cartridge will be discarded after the battery or e-liquid is depleted.
The First Generation E-Cigarette
With yellow cartridge and white vapor, the first generation e-cigarettes emulate the look of real tobacco cigarettes. For that, it was accepted by many customers immediately at that time and is still very popular now. However, users gradually find these cigalikes have many shortcomings during their usage, which mainly due to the atomizer. The first generation of electronic cigarette atomizer is easy to burn out, and its pointed part to be damaged while replacing cartridges. It worn out and could not using completely over a period of time.
The Second Generation E-Cigarette
Compared with the first generation three parts devices, the most significant improvement of the second generation e-cig is that atomizer and cartridge are made together into one part: cartomizer. The second generation ones are usually two part devices with a tank and a separate battery. Generally, they look like pen, in which most popular is eGo style. And these commonly use a tank or a "clearomizer". The clearomizer tanks are meant to be refilled with e-juice. Because the tank can be refilled and the battery recharged, the cost of operation is lower.
The Modern E-Cigarette
With the rapid development of technical innovation, many new technologies have been applied to modern e-cigarettes based on the second generation ones, and create a variety of revolutionary e-cig devices. Currently, the most popular products on the market are mods with large battery capacity or temperature control capability, and sub-ohm tanks. These products come in a variety of shapes and sizes, look less like tobacco cigarettes, and usually bigger and heavier. Besides that, the application of Bluetooth 4.0 technology adds more intelligent features to the modern e-cigarettes.
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