A Beginner’s Guide to Vape Terminology

Walk into any online smoke shop or vape retailer’s product page and you’ll run into a wall of abbreviations and numbers: puffs, mg, mL, ohms, nic salts, coils. For anyone newer to vaping, it can feel like the products are speaking a different language. Here’s a plain-English breakdown of the terms you’ll actually run into most often.

Nicotine-Related Terms

Nicotine strength (mg or %) — This tells you how concentrated the nicotine is in the e-liquid. It’s usually expressed either in milligrams per milliliter (like 50mg) or as a percentage (like 5%), which are just two different ways of describing the same concentration. Higher numbers mean a stronger nicotine hit.

Nicotine salts (nic salts) — A form of nicotine that’s chemically different from the “freebase” nicotine used in older e-cigarettes and traditional cigarettes. Nicotine salts are generally associated with a smoother inhale at higher concentrations, which is a big part of why most current disposable devices use this formulation rather than freebase nicotine.

Freebase nicotine — The traditional form of nicotine used in most e-liquids before nic salts became dominant. It tends to feel harsher at higher concentrations, which is why freebase e-liquids are usually sold at lower nicotine strengths than nic salt products.

Zero-nic / 0mg — E-liquid or disposable devices with no nicotine at all, for people who want the vaping experience without any nicotine content.

Device and Hardware Terms

Puffs / puff count — An estimate of how many inhales a device is designed to provide before the battery or e-liquid runs out. It’s a manufacturer estimate, not a guarantee — actual puff count varies based on inhale length, frequency of use, and individual habits.

Disposable vape — A device designed for single use (or, increasingly, extended use via a rechargeable battery) that comes pre-filled with e-liquid and doesn’t require refilling, coil replacement, or manual assembly.

Pod system — A reusable device that uses small, often refillable or replaceable cartridges (“pods”) rather than a traditional tank. Pod systems sit between fully disposable devices and more advanced mod-and-tank setups in terms of complexity.

Coil — The heating element inside a vape that turns e-liquid into vapor. Coils wear out over time and need periodic replacement in refillable devices; in disposables, the coil is sealed inside and simply discarded with the rest of the device once it’s used up.

Ohms (Ω) / resistance — A measurement of the coil’s electrical resistance. Lower-resistance coils (sub-ohm, meaning under 1.0Ω) generally produce bigger vapor clouds and a warmer vape, while higher-resistance coils are typically associated with a tighter draw closer to a traditional cigarette.

mAh (milliamp-hours) — A measurement of battery capacity. Higher mAh generally means the battery lasts longer between charges, which matters more for rechargeable and hybrid devices than for basic single-use disposables.

Rechargeable / hybrid disposable — A device styled and used like a disposable but built with a rechargeable battery, allowing it to work through a much larger e-liquid capacity than the battery alone would otherwise support. This category has grown quickly as puff counts have climbed into the tens of thousands.

E-Liquid Terms

PG (Propylene Glycol) and VG (Vegetable Glycerin) — The two base liquids that make up most e-liquid, mixed in different ratios. Higher PG ratios are generally associated with a stronger throat hit and more pronounced flavor; higher VG ratios are generally associated with thicker vapor production.

mL (milliliters) — The volume of e-liquid in a device or bottle. Larger mL capacity is one of the main reasons newer disposables can support such high puff counts compared to older, smaller-capacity devices.

Steeping — A term mostly relevant to bottled e-liquid (less so pre-filled disposables), referring to letting the liquid sit for a period of time to let the flavor develop more fully before use.

Shopping and Category Terms

MSRP — Manufacturer’s Suggested Retail Price, essentially the sticker price before any sale or discount pricing.

Full kit vs. pod only — On hybrid rechargeable disposables, “full kit” usually means the device comes with everything included (battery plus a first pod), while “pod only” means you’re buying a replacement or additional pod for a device you already own.

Age verification — A standard checkout requirement across legitimate vape retailers, confirming the buyer meets the legal minimum age (21 in the United States) before a purchase can be completed.

Putting It Together

None of these terms are complicated on their own — the confusion usually comes from seeing them all listed together on a single product page without context. Once you know that puff count is an estimate, that nic salts and freebase are just two different nicotine formulations, and that ohms describe coil resistance rather than device quality, most product listings become a lot easier to parse.

If you’re browsing an online smoke shop for the first time, it’s worth reading through a few product descriptions with this terminology in mind — most of what looks like marketing jargon is actually just a specification, once you know what it’s describing.

Where This Terminology Matters Most

Terminology tends to matter more with reusable devices than with basic disposables, since there’s simply more to compare. This is especially true for vape pods, where a single product listing might reference coil resistance in ohms, battery capacity in mAh, tank size in mL, and nicotine percentage all in the same paragraph. A disposable mostly just needs a puff count and a flavor name, but a pod system asks you to weigh several specifications against each other — which coil resistance suits your preferred draw, how much battery life you actually need, and how often you’re willing to refill the tank. Knowing what each term means going in makes that comparison far less intimidating.

Final Thoughts

Vaping terminology isn’t inherently difficult — it’s just unfamiliar until you’ve seen it enough times. Puffs, ohms, mg, mL, and nic salts are all just specifications, the same way “megapixels” or “horsepower” are specifications in other product categories. Once the vocabulary clicks, comparing products becomes a lot more straightforward.

For adults 21+ only. Content is for informational purposes and is not intended as medical or legal advice.