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What is an E-cigarette?

The E-cigarette has been called one of the greatest human innovations of the last 100 years. And despite having the word in its name, it’s really not a cigarette at all—it’s a vaporizer.

How do E-cigarettes Work?

An E-cigarette is typically comprised of three main components:

  •   The tank, or sometimes a cartridge, which is filled with E-liquid
  •    A heating coil (sometimes called an atomizer)
  •    A battery that powers the heating coil and turns the E-liquid into vapor

The battery powers the coil, which in turn heats the E-liquid. Nothing is burned, no smoke is released. Instead, it creates a rich, pleasant vapor.


The most complex component of the E-cigarette is the battery, which powers the unit, heating the coil and creating vapor.

There are three key units of measurement to remember when discussing batteries. The capacity of a battery, or the amount of charge it holds, is measured by milliamp hours (mAh). While, wattage (watts) and voltage (volts) are a measure of the amount of power being generated—these can be adjusted manually on some batteries.


The coil is sometimes called an atomizer. It heats the E-liquid to create vapor. Coils take many forms, some are wicked while others are made from wire and wrapped in cotton. Regardless, they all achieve the same end-result: vaporization of E-liquid.

Coils are associated with ohms, which measure electrical resistance. The lower the ohms, the quicker the coil heats up and the more vapor it creates. Every E-liquid has its own sweet spot. Some E-liquids vape more flavorfully with a higher resistance coil while others need a lower, sub-ohm coil to unlock their full taste. You’ll need to experiment a little to find out what works best for you.


A tank is the most common receptacle for E-liquid. Some cig-a-likes, like the G6, use a cartridge system which combines the atomizer with the tank to create one unit called a cartomizer.

While many tanks are between 2-4 ml in size, larger, more powerful E-cigarettes tend to be accompanied by larger tanks because they vaporize E-liquid faster.

What Exactly is E-liquid?

E-liquid, sometimes called e-Juice or Smoke Juice, is the substance that your E-cigarette turns into vapor. It consists of Propylene Glycol (PG), Vegetable Glycerin (VG), flavoring and, depending on your preference, sometimes nicotine.

How is E-liquid Made?

At Halo, all of our e-liquid is blended by trained chemists in a state-of-the-art cleanroom environment housed at our Gainesville, Florida facility. We use only USP-grade Nicotine, Propylene Glycol, and Vegetable Glycerin and we independently test all of our flavorings. All of our e-liquid is steeped to achieve maximum flavor, then bottled in our iconic cobalt blue glass bottles. All Halo and eVo e-liquid is packaged with child-resistant caps and includes best-by-dating and lot numbers on the labeling to ensure freshness and quality.

See the Process


Our e-liquid base is prepared to current Good Manufacturing Practices (cGMP) and is tested for nicotine concentration via High-Performance Liquid Chromatography (HPLC) and Nuclear Magnetic Resonance Spectroscopy (NMR Spectroscopy) to ensure the safety of our customers. We use only the highest quality United State Pharmacopeia (USP) Grade Nicotine, Propylene Glycol and Vegetable Glycerin. Our flavorings consist of Flavor and Extract Manufacturing Association approved food additives.

Halo E-liquid test results


Once a formula has been tested, perfected and finalized it gets sent to our Gainesville, FL production center where it’s blended by trained chemists in a clean room environment. We use precision mixing and filling equipment, in conjunction with our proprietary steeping process, to maintain consistent taste and quality in each and every batch.


After an E-liquid has been blended it is given time to steep. Much like in the production of fine wine, it’s important to allow the various ingredients to marry in order to achieve peak flavor. After sufficient time has passed the E-liquid is tested for quality and bottled.


After steeping is complete, the E-liquid is bottled in glass. For smaller amounts – 7 and 10 ml – a durable plastic bottle is used and inserted into a light-proof box.

Halo was one of the originators of child-resistant caps on its E-liquid. In addition, our 30 ml packaging features tamper-evident banding to ensure the product is unaltered, and all packaging includes Trackable Lot Numbers, Best-By dates, a list of ingredients used and the E-liquid’s flavor and nicotine level.

PG vs. VG

You may occasionally see an E-liquid marketed as high VG, or even 100% VG—this is relevant to the amount of vapor the E-liquid produces. While both Propylene Glycol and Vegetable Glycerin can be used as a base for E-liquid production, bases that feature VG more prominently tend to produce more vapor than bases with a higher amount of PG.

Whichever you prefer – a higher PG or higher VG base – is really just a matter of personal preference. Many vapers who have just made the transition from smoking prefer a higher PG for the throat hit. The throat hit is the feeling you get when the nicotine hits the back of your throat. High VG liquids carry less of a throat hit than their counterparts.

What Differentiates Good E-liquid from Bad?

That’s a loaded question, but given the very intimate nature of the product, transparency is a good place to start. Before you purchase an E-liquid, the manufacturer has a responsibility to let you know what’s in it, where its ingredients came from and whether it's been tested. If the company isn’t willing to furnish that information—be careful.

Beyond that, what kind of standards does the manufacturer hold itself to? Was the E-liquid made in a laboratory or mixed on the spot? Is it a company that has been around for a while or one that just started? Is the company taking steps to ensure the quality of its products are maintained after they’re shipped or does it look like they’re just happy to get it out the door?

Good E-liquid can provide you with a top-of-the-line vaping experience—bad E-liquid, not so much. So it’s in your best interest to be discerning.

What Are the Costs Associated with Switching?

In the long run, E-cigarettes will save you a considerable amount of money. But, there are some up-front costs. You’ll need to pick up the hardware, we suggest starting with a G6 or Triton (check out our recommendations below).

One 30ml bottle of Halo premium E-liquid costs you $19.99—about half to two-thirds the cost of a carton of cigarettes. But, that bottle is equivalent to up to two or three cartons depending on the nicotine level and your usage habits.

Or to put it another way, one bottle of E-liquid can potentially last you about as long 20-30 packs of your favorite brand of smokes.

What Type of E-cigarette is Right for me?

Electronic cigarettes currently take several different forms. There are cig-a-likes, like Halo’s G6, that resemble traditional cigarettes. There are tank systems, sometimes called vape pens or e-Hookahs, like Halo’s Triton. And then there are more advanced vaporizers, like Halo’s Tracer or Reactor, that are often used by seasoned vapers.

The G6

Let’s start with the G6 E-cigarette. Most new vapers, the colloquial term for E-cigarette users, like to transition from traditional cigarettes to electronic cigarettes with a model that looks and feels like what they’re already used to. That’s why the G6 is a perfect starting point for new E-cigarette users.

Click here for G6 FAQ

The Triton Tank System

While many former smokers are content to stay with the G6, others move on to a more advanced vaporizer or “vape pen.” Meet the Triton Tank System. While it feels a little different, the Triton has many attractive features such as a larger tank, extended battery life and improved taste.

Click here for Triton FAQ

The Tracer

At the other end of the vaping spectrum is the Tracer. This is for more advanced vapers that enjoy blowing large clouds and are looking for elite performance. If you fit that bill, a unit like the Tracer is sure to deliver. Powered by a heavy duty 2600 mAh battery and an extremely powerful sub-ohm coil, the Tracer creates massive vapor, the likes of which you would see in a cloud-chasing competition.

Click here for Tracer FAQ

The Reactor

The ultimate in vaping technology, the Reactor allows vapers to control every aspect of their experience. From the massive tank and dual vertical coil, to a battery that allows for adjustments of wattage and voltage, the Reactor allows you to tailor your experience to your vaping preferences while getting immense flavor and vapor production.

Click here for Reactor FAQ

What flavor of E-liquid is best for me?

That all comes down to preference. Many former smokers that are just making the transition to vaping tend to stick with what’s familiar—tobacco and menthol flavors with a higher PG base to get a solid throat hit.

But in our experience, that’s a phase. While there may always be a place in your heart for tobacco or menthol flavors, many of our customers quickly discover the joys of vaping more adventurous flavored E-liquids – like Tangerine Swirl or Malibu – and start to make those a regular part of their rotation.

There really is something for everyone—it’s just a matter of finding it.