Two wooden-looking devices. Both nicotine-free. Both say “flavoured air”. So which one?
We make one of them. So we'll show our working: same criteria for both, every FÜM fact from FÜM's own pages, and the places where FÜM is simply the better pick.
Short answer
Both are nicotine-free flavoured air devices with no battery and no heat: you draw air through a replaceable core. FÜM offers the widest flavour range, 17 airflow settings on its Lifetime device and a single use FÜM Zero. Lio is made of olive or walnut wood, lists every ingredient per flavour and ships free from Amsterdam. Choose by flavour range and location.
First, what's the same
More than you'd think. Both are flavoured air devices: you draw air through a replaceable core that holds plant-based flavour. Neither has a battery, a heating element, nicotine or vapour. FÜM describes its device as smokeless, vapeless, heatless and non-electronic.1 That describes Lio word for word.
Side by side
Compared on: build, cores, airflow, entry options and returns. Facts from each brand's own published pages, checked 15 November 2026.
| Lio | FÜM | |
|---|---|---|
| Body | Olive or walnut wood | Wood barrel, metal mouthpiece (varies by model) |
| Core | Fibre carrier, 1 to 3 ingredients listed per flavour4 | Medical-grade polyester with plant extracts1 |
| Core life | About 2 days of regular use | 2 to 3 days of repeated use2 |
| Airflow | Adjustable (FlowDots) | 17 settings on the Lifetime device3 |
| Single-use option | No | FÜM Zero, up to 10 days of flavour3 |
| Air tested | Independent lab analysed the air drawn through a Lio5 | See FÜM's own pages |
| Returns | Money back if you don't love it after 30 days of use | Sealed products within 3 months; opened devices not returnable for hygiene3 |
| Ships from | Amsterdam, free shipping | North America; check your country |
Where FÜM wins
- Flavour range. More than ten interchangeable flavours for the Lifetime device.3
- Fine control. Seventeen airflow settings is more granular than most.
- A cheap first try. FÜM Zero is single-use, so you can test the category before buying a reusable device.3
- US shelves. In North America, FÜM is easier to find in stores.
Where Lio is different
- Wood, all the way. Olive or walnut. Lio is the world's first wooden flavoured air device, and it's patented.
- Every ingredient, per flavour. Most Lio flavours have one or two essential oils. Read them all before you buy.4
- Cores produced in the Netherlands, and the air drawn through a Lio analysed by an independent lab.5
- A guarantee that works after you've used it. FÜM won't take back opened devices.3 Lio's guarantee applies after 30 days of use.
- European base. Free shipping from Amsterdam across the EU and UK.
The wooden design is visually pleasing and so comfortable and light to hold.
So which one should you get?
Get FÜM if you want the widest flavour range, you live in North America, or you want to try the idea with a single-use device first.
Get Lio if you're in Europe, you want natural wood in your hand, you want to read every ingredient, and you want to be able to change your mind after a month of real use.
Either way, you're choosing between two versions of the same good idea. Not a bad problem to have.
Remember this
- Same idea: air through a replaceable flavour core, no battery, no nicotine.1
- FÜM wins on flavour range, airflow settings and a single use entry option.3
- Lio is wooden, publishes short ingredient lists, and ships from Amsterdam.4
- FÜM doesn't take back opened devices; Lio's guarantee applies after 30 days of use.3
Frequently asked questions
Is Lio better than FÜM?
It depends on what you want. FÜM has more flavours and finer airflow control. Lio is wooden, European and lists every ingredient per flavour.
Do Lio cores fit in a FÜM?
No. The cores are designed for each brand's own device.
Which is better in Europe?
Lio ships free from Amsterdam across the EU and UK. Check FÜM's shipping options for your country.
Sources
- FÜM Support. Your FÜM: materials and use. fum-support.gorgias.help
- FÜM Support. How long does one core last? fum-support.gorgias.help
- FÜM Support. FÜM Zero FAQ, incl. comparison with the Lifetime device. fum-support.gorgias.help
- Lio. Ingredients, flavour by flavour. breathelio.com
- Lio. Science and safety. breathelio.com
Founder of Lio. Writes about habits and the products Lio makes. Has a commercial interest in this topic, which is why every claim here is sourced.
Lio is not a medical device, a smoking cessation aid or a treatment, and makes no health claims. This guide is general information, not medical advice. If you want help with nicotine dependence, speak to a pharmacist, GP or your national quit service.
