Skip to content
Woman vaping | Eliquids | Vape store

E-liquids guide: what is a mouth-to-lung vape device?

In the past five years, vaping has blown up massively. From a time when most people had never heard of it, to e-liquid stores being on every street corner, vaping has struck a chord with users everywhere. A big part of the appeal of buying e-liquids is the ability to buy different multi-use devices to fit your needs, rather than single-use vape devices.

Regardless of whether you’re new to vaping, or an absolute vape veteran, you’ve likely tried or seen a mouth-to-lung vape device, since they’re easily the most common and cost-effective method of vaping. Ranging from the imitation e-cigarettes in corner shops, to high-quality open-pod devices like the Uwell Caliburn, it’s a versatile category.

What is a vape device?

First up! Before you find out what a mouth-to-lung vape device is, you’ve got to find out what a vape device is full stop. Let’s get the obvious out the way: vape devices are devices...for vaping. But how do they produce those tasty, tasty clouds?

All vape devices, regardless of whether they’re mouth-to-lung or sub-ohm, work on a basic principle. They contain a wick which soaks up a small amount of your vape juice of choice and brings into a contact with a heating coil. When the vape device is activated, this heating coil does its thing and heats up, vaporising the e-liquid.

This e-liquid is a simple mix of water, nicotine, and two liquids known as PG/VG, which help simulate the sensation of smoking in the finished vapour. This is what distinguishes vaping from a hookah or water pipe, since none of the other harmful substances found in tobacco are present. 

Uwell Calibrun | Vape kit | Open-pod vape

Mouth-to-lung vs. direct-to-lung

These vape devices can largely be split into two categories: mouth-to-lung (MTL), and direct-to-lung (DTL), also known as sub-ohm vaping. Which style you use is entirely dependent on the vape hardware you have in hand. 

The distinction between the two is revealed in the names: with mouth-to-lung devices you first inhale the vapour into your mouth, followed by inhaling to your lungs (like a cigarette), while direct-to-lung users take a steady inhale straight into their lungs. Which you choose is all a matter of preference.

MTL vaping is the most similar to smoking, so many looking for a direct substitute will choose mouth-to-lung. DTL vaping produces far bigger clouds, and is the style you’ll see many prolific vapers choosing, though it requires more complex hardware and a more hands-on approach. 

What are mouth-to-lung vape devices?

So, what is it about a mouth-to-lung device that actually separates it from the rest of the pack? These are generally low-powered devices that don’t allow for much customisation. Instead, they prioritise usability, and are typically ready to go straight out the box.

A great example would be the Uwell Caliburn. This is an open pod vape device, which means you simply buy a pod to put your e-liquid in, which contains the wick and heating coil. These are then replaced each time the coil wears out, though this takes significant usage. Otherwise it’s just a neat metal chassis which is perfect for portability. 

It’s sleek, simple, and can be operated either by simply inhaling, or pressing the button. That’s it! For a great vaping experience that’s simple and direct to the point, mouth-to-lung devices present a great alternative to smoking, especially since holding the vapour in your mouth increases the flavour. 

Not only are they no-nonsense, they also pack a great throat hit—the big benefit of mouth-to-lung! Anyone looking for an alternative to smoking should start with a mouth-to-lung vape device, since they're so quick to pick up. 

Nic Salts | Six Licks | Vape liquids

What about the PG/VG ratio?

The other thing to consider is your PG/VG ratio. Higher VG leads to the production of larger clouds, while PG improves the throat hit and flavour. No prizes for guessing which works best in mouth-to-lung devices!

We’d always recommend using e-liquids with a higher PG ratio, not just because of the improved throat hit, but because the thinner liquid works better in the lower powered devices. 70/30 PG/VG works great, but you can also use a 50/50 nic salt too, since they add to the natural throat hit!

Buying a mouth-to-lung vape device

If you hadn’t guessed by now, we’ve got a favourite mouth-to-lung device, and it’s the Uwell Caliburn. The best part? You can nab it from our vape store now at a great price, alongside a massive selection of the best e-liquids around. Well, what are you waiting for? Get vaping!

Previous article E-liquids guide: what is a sub-ohm vape device?
Next article E-liquid guide: what are nic salts?