In 2004, the e cigarettes are introduced into the market. But by 2013 the users are increased. And after that users are increased rapidly in the world wide. Within a short period of time these e cigarettes and e liquids business became a booming market. In online also as well the sales are increased firstly. But after that in 2106 the market in US and UK decreases. These are not at all recommended for children. In adults mostly the users with higher income interested to use these compared to the users with less income. Users with less income want to try this once rather than used every day. In the worldwide almost 56% of the smokers used these e liquids at least once in their life time. In 2011-2012 a survey is conducted to see how many of the users used nicotine free e liquids Shocking news is it shows only about 1% of 
the users are there who are used nicotine free e liquids. In this survey also found that most of the e cigarette users are mostly middle aged men.
Some are using these e cigarettes to quit their tobacco smoking. This will help out for them. The vapors come from these helps them to quit tobacco smoking. From 2014 the usage of these cigarettes in women also increased. Some of the users who also don’t have the habit of smoking using these e cigarettes for the try and also for fashion purpose, for those people this is the starting point of usage of nicotine. In 2014 US take a survey on these liquids. They found that about 1% of the adults used it daily. Older adults are used quite often than the younger adults. In 2013, Centers for Disease Control and Prevention found that about 2 lakhs students who do not had the habit of smoking are used these electronic devices. In France also about 2 million people used it daily.