Flum: Restrained Flavor, Distinctive Shapes
Flum built its following on two things most disposable brands don't prioritize. The first is
flavor restraint — Flum devices run smoother and less aggressively sweetened than the Geek Bar and RAZ house styles, which is why people who find those brands overwhelming tend to land here. The second is industrial design: the Pebble's rounded shape and the UT Bar's flask silhouette are among the few disposables that look like objects rather than rectangles.
Everything here is genuine stock sourced through authorized distribution and shipping from our US warehouse.
About the Puff Counts
This deserves a direct answer, because it's the most common complaint about the UT Bar specifically and about the 50K category generally:
a device rated at 50,000 puffs will not give most people 50,000 puffs.
Advertised counts come from lab testing using short, uniform one-second draws at the device's lowest power setting. Real vaping uses longer pulls, and any boost or turbo mode consumes liquid faster still. Heavy users regularly report a week to ten days from a 50K device; moderate users get four to eight weeks. Both are consistent with the hardware working correctly.
The number that doesn't move is
e-liquid volume in ml. Compare that between devices and you'll get a far more honest picture than any puff figure provides. If the discrepancy bothers you — and it's a reasonable thing to be bothered by — a
refillable pod kit from $12.99 with
nicotine salts removes the guesswork entirely and costs less over a year.
Using and Charging a Flum
Flum devices are draw-activated — no button, no setup. Two things to do before the first pull:
- Remove the packaging. New devices ship with a silicone plug in the mouthpiece and often a sticker over the airflow intake. A blocked intake feels exactly like a dead device.
- Draw slowly. High-capacity devices respond to a steady pull. Hard fast draws flood the coil and cause gurgling.
The UT Bar charges over USB-C. Use a standard wall adapter or laptop port rather than a fast-charge phone brick, and expect to recharge several times before the liquid runs out — the tank holds far more than the battery does.
If something goes wrong
Won't hit — check the airflow sticker is off, charge for 20 minutes, and clear any lint from the USB-C port with a dry toothpick. Our
guide to a screen device that won't fire applies broadly across high-capacity disposables.
Tastes burnt — usually chain vaping (give the wick 20–30 seconds), low liquid, or genuine end of life. See
why vapes taste burnt.
Gurgling or leaking — tap the device mouthpiece-down on a paper towel and take short gentle draws. See
why vapes pop and crackle.
Empty device — it contains a lithium battery. See
how to dispose of a disposable vape rather than binning it.
Flum FAQs
What is a Flum vape?
Flum is a disposable vape brand that became widely recognized through the Pebble — a small, rounded device that stood out in a market of identical rectangles. The current lineup spans from the 6,000-puff Pebble up to the 50,000-puff UT Bar, all pre-filled with salt nicotine and, in the higher-capacity models, USB-C rechargeable with a display.
How much is a Flum vape?
Ours run $17.99 to $18.99 for the UT Bar 50K range. Smaller devices like the Pebble cost less. At 50,000 rated puffs the UT Bar works out to well under a dollar per 1,000 puffs on paper — though see the section above on what those numbers actually mean in practice. Check
current deals for markdowns.
Where can I buy Flum vapes?
Here — everything on this page ships from our US warehouse through authorized distribution. If you're comparing prices elsewhere, be cautious: unusually cheap Flum devices are frequently counterfeit, and fakes account for a real share of the failure and off-taste reports you'll find online. Learn to
spot counterfeit devices. Availability varies by state — check our
US vape ban tracker.
Is a Flum vape safe?
It contains nicotine, which is addictive and not safe in any absolute sense — that's true of everything on this site. Relative to combustible cigarettes there's no smoke, tar, or combustion. What matters most practically is authenticity: counterfeit devices bypass quality control entirely, and that's where genuine risk sits. Buy from authorized retailers. For background, read
what nicotine does to your body.
Can I refill a Flum?
No. Flum devices are sealed — no fill port, no replaceable coil. Prying one open gets you a few burnt puffs and a broken seal. If refilling is what you want, see
pod kits, or
detachable vapes if you'd rather swap a pre-filled pod than measure liquid.
Which Flum should I buy?
The
UT Bar 50K for the longest life and our best-rated Flum. The Clear Tank version if you want to see your liquid level directly. The
Tobacco / Gold if you've just switched from cigarettes. The
Pebble 6000 if you want something pocketable and low-commitment.
What nicotine strength?
5% (50mg) salt nicotine across the range. For alternatives see
zero nicotine disposables.
Can I fly with one?
Carry-on only, never checked baggage. See
taking a vape on a plane.
snpenny87 (verified owner) –
This is my first time trying the Flum UT Bar, and the two that I ordered are great! These took me by surprise bc I haven’t heard ppl talking about them.The flavor is strong and potent, (in a good way) and it’s almost gone. If you’ve never tried these, do it now! You won’t regret it! I’m ready to try some more flavors!