Over 40 million Americans are cigarette smokers, but 70% of smokers report that they wish they could quit. More than 42% of smokers claim they have tried to quit at least once in the past year. In 2009 cigarette sales fell by 10%, which has been attributed to the increase in cigarette tax; as well as, the increase in e-cigarette sales.

Smokeless tobacco products, including e-cigs, contribute to almost $3 billion in global sales, and that number is continuously growing. To help quit traditional cigarettes, as many as one-fifth of smokers have tried e-cigarettes.

E-cigarettes were introduced to the US market in 2007, first developed by the Chinese. Many e-cigs are designed to mimic the look and feel of traditional cigarettes, but there are many differences between these two products.

Top 5 facts unknown about e-cigarettes:

1)     Nothing Burns

Traditional smokers have to be prepared at all times. They must have a lighter handy, or ask to borrow one from a friend or even stranger. On the other hand, E-cigarettes (e-cigs) do not require a lighter they are powered by a lithium battery. The vaporization chamber and liquid cartridge do the rest of the work. You puff on an e-cig in much the same way as you would with a traditional cigarette; however, in this instance the battery powers the device, heating the liquid and vaporizing it. E-cigs do not burn tobacco, so there is no smoke, carbon monoxide, or odor unless you have chosen a particular flavor liquid.

2)     They Contain Liquid Nicotine

E-cigarettes contain liquid nicotine, so while they are smoke-free and tobacco-free they are not nicotine-free. The liquid you find inside e-cigs and refill is generally a mixture of nicotine, propylene glycol, additives, and flavorings. You can choose from a wide range of flavors including almond ameretto, brandy, black cherry, and more. There are many types of liquids to choose from, the amount of nicotine depends on the product. Some liquids have the same amount of nicotine as a regular cigarette, and some only contain an amount similar to a light or ultra light cigarette. You can also purchase liquids with no nicotine. These products may help those attempting to quit cigarettes, as they can still enjoy the experience of smoking without the harmful effects.

3)     Toxicity

Liquid nicotine is extracted straight from tobacco, and can be lethal if enough is ingested or absorbed through skin. It’s important to treat liquid tobacco carefully, and call poison control center if you have ingested or absorbed liquid tobacco. How much is too much? Less than one tablespoon of many e-liquid varieties could be enough to kill an adult. Keep out of reach of children.

4)     Research Is Still Out

Although e-cigarettes have been on the market for years, much is unknown about the effects of the product. FDA testing has found cartridges under the same manufacturing label may release significantly different levels of nicotine, that can range between 26.8 to 43.2 mg per 100 milliliter puff. Lab tests also show that nicotine-free cartridges can contain a low dose of nicotine.

5)     They Are Reusable

Since e-cigarettes are battery powered, they are rechargeable devices. If you’re low on battery, you simply need to plug in your device for a quick charge, just remember to bring your charger with you. Maintenance and usability are dependent upon the e-cigarette device and brand you use. You can find USB chargers, which makes charging in your car or at the office easier. The liquid cartridges are also refillable. The reusability of the product is a perk for many smokers looking to reduce overall costs.