When you see "15,000 puffs" on a disposable vape box, it's not a promise—it's a lab estimate. Manufacturers test these devices under controlled conditions: a standard puff duration (usually 2–3 seconds), a set interval between puffs, and a consistent draw strength. That's how they get that big number.

But here's the catch: you don't vape like a machine. Your commute puff might be a quick 1-second hit; your after-dinner session could be a long 5-second drag. The lab number doesn't account for any of that. So when a device says "up to 15,000 puffs," read it as "in a perfect world, with gentle, short puffs and plenty of time between them."

In Illinois, where winters push people into short, frequent car or train hits, the real puff count often lands well below the claim. That's not a scam—it's just how estimates work. But it helps to know what you're actually paying for.