The puff count puzzle.
What does “20,000” actually mean?

The number needs context

15,000. 20,000. 30,000. Puff counts are easy to spot on a vape box. What is harder to spot is exactly what the manufacturer counted as one puff.

A rating such as “up to 20,000 puffs” is an estimate tied to testing conditions. It does not promise that every person will get 20,000 of their usual draws, or that the device will last a particular number of days. LOST MARY’s own puff-count explanation identifies draw duration and device settings as factors that affect the result. [1]

What counts as one puff?

A puff can be counted as a single activation, but that does not make every activation equal. One person’s draw may last a second; another’s may last several seconds.

In its August 2026 guide, LOST MARY describes advertised counts as estimates typically based on short, approximately one-second machine draws. That is the manufacturer’s explanation. It should not be treated as proof that every brand or model uses the same method. [1]

Here is a simple illustration of why duration matters:

Both rows contain 100 draws, but one has three times the total draw time. This is arithmetic, not a product test. It does not establish that a three-second draw uses exactly three times the liquid or delivers exactly three times the nicotine.

Machine testing has specific rules

Laboratory methods can hold puff length, volume and timing constant so researchers can compare measurements. For example, a 2024 study used three-second, 55-milliliter machine puffs with a 30-second interval under the CORESTA CRM 81 method. [2]

ISO 20768 also sets conditions for analytical vaping machines. Its scope does not specify which product, liquid or product operation must be used. The existence of a laboratory standard does not, by itself, establish how a particular advertised puff total was measured. [3]

One device can have two different ratings

GEEK BAR’s official Pulse page lists 15,000 puffs in Regular mode and 7,500 in Pulse mode. Those are the manufacturer’s ratings for the same model in different modes. [4]

This example shows why a headline number needs its accompanying setting. It does not prove an independently measured result, and it does not mean every device’s higher-output mode cuts its puff count exactly in half.

Puff count and days of use are different

A total count cannot tell you how often someone will use a device. Even if two people obtained the same number of draws, the person taking more draws each day would reach that total sooner. Dividing an advertised maximum by an assumed daily count only gives a calculation based on assumptions—not a verified lifespan. [1]

Battery charge is another separate quantity. Some disposable devices are rechargeable, but are not designed to be refilled. Recharging restores battery energy; it does not replace used liquid. [6]

Puff count is not a nicotine-dose measurement

The number on the box does not tell you how much nicotine a person absorbs. Research has found that puff duration, device voltage and liquid nicotine concentration affect nicotine yield. There is no universal conversion from “one puff” to a fixed nicotine dose. [5]

That also means a larger advertised puff count is not a measure of safety. Nicotine is highly addictive, and e-cigarette aerosol can contain other harmful substances. [6]

What should a clear claim tell you?

Useful details behind an advertised total include:

• Draw duration: how long each test puff lasted.
• Device settings: which mode, power and airflow settings were used.
• Test endpoint: what counted as the device being finished, and whether recharging was allowed.
• Results across units: whether the number is an average, a maximum or another estimate.

Without those details, two large numbers on two boxes are an incomplete comparison. The useful information is the method behind the claim—and how closely that method represents the situation being described.