Electronic cigarettes have grown significantly in popularity over the past two years. When you “vape” an e-cig, the liquid that contains the flavoring, nicotine, and propylene glycol (makes the visible smoke) is called e liquid. E liquid is also referred to as e juice depending on where you’re reading on the Internet. When you vape an e-cig, the e liquid is heated by the atomizer when then creates the vapor. Most manufacturers sell cartridges that are pre-filled with e liquid, but some smokers prefer to fill their own cartridges with either home made or store bought e juice.

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