If you’ve ever looked into how a vape works, you’ve probably come across the word atomiser. It sounds technical, but the idea behind it is actually quite simple.
An atomiser is the part of a vape responsible for heating e-liquid and turning it into the aerosol you inhale. Without it, a vape wouldn’t be able to produce vapour.
Whether you’re using a rechargeable pod kit, a refillable vape tank or a more advanced device, an atomiser plays an important role in how everything works.
In this guide, we’ll explain what a vape atomiser is, how it works, the different types available and when you might need to replace or maintain one.
What Is an Atomiser in a Vape?
A vape atomiser is the heating system that turns e-liquid into vapour.
When you activate your vape, the battery supplies power to a heating element inside the atomiser. This element heats the e-liquid absorbed by the wick, producing an aerosol that travels through the mouthpiece.
Most modern vape devices use some form of atomiser, although the design can vary depending on the type of device.
For example, a prefilled pod kit usually has a small heating element built into each replacement pod. A refillable vape tank, on the other hand, may use a removable coil that needs replacing from time to time.
Although these systems look different, they all perform the same basic job: heating e-liquid to produce vapour.
What's the Difference Between a Vape Coil and an Atomiser?
It’s easy to confuse vape coils and atomisers because the two terms are often used together.
The simplest way to understand the difference is that the coil is the heating element, while the atomiser is the system that uses that heating element to produce vapour.
Think of it like a kitchen hob. The atomiser is the overall heating system, while the coil is the part that generates heat.
Depending on the device, an atomiser assembly may include several components:
- Coil: The heating element that warms the e-liquid.
- Wick: Usually made from cotton or another absorbent material, it carries e-liquid to the coil.
- Tank or pod: Holds the e-liquid until it’s needed.
- Mouthpiece: Allows you to inhale the aerosol produced by the device.
Not every vape combines these parts in exactly the same way. Some have replaceable coils, while others have a sealed pod containing the coil and wick.
How Does a Vape Atomiser Work?
A vape atomiser works by combining e-liquid, heat and airflow.
Although the internal design varies between devices, the basic process is straightforward.
Step 1: E-Liquid Is Stored in the Tank or Pod
First, the e-liquid sits inside a tank, cartridge or pod.
In refillable devices, you add the e-liquid yourself. Prefilled pods already contain e-liquid when purchased.
Step 2: The Wick Absorbs the E-Liquid
Inside the atomiser, an absorbent wick draws e-liquid towards the heating element.
This helps keep the coil supplied with liquid during use.
Step 3: The Battery Powers the Coil
When you press the fire button or inhale through an inhale-activated device, the battery sends electricity to the coil.
The coil heats up, warming the e-liquid held in the wick.
Step 4: The E-Liquid Forms an Aerosol
As the e-liquid heats, it forms an aerosol made up of tiny droplets.
This is what people commonly refer to as vape vapour. Unlike a cigarette, a vape does not need to burn tobacco to produce it.
Step 5: The Aerosol Travels Through the Mouthpiece
Air passes through the device, carrying the aerosol towards the mouthpiece.
You then inhale it as you would during normal device use.
All of these steps happen very quickly, often within a second of activating the vape.
What Are the Different Types of Vape Atomisers?
Not all vape atomisers are designed the same way.
Some are built for convenience, while others allow users to replace individual parts or adjust their device settings.
Here are the main types you may come across.
- Prefilled Pod Atomisers
Prefilled pod systems are designed to make maintenance simple.
The pod usually contains the e-liquid, coil and wick in one sealed unit. When the e-liquid runs out, you remove the empty pod and replace it with a compatible new one.
There is generally no need to refill the pod or change the coil separately.
Devices such as the Vuse Pro use this type of system.
Best suited for: Adult users who prefer a straightforward device with minimal maintenance.
- Built-In Atomisers
Built-in atomisers are permanently integrated into a device.
They were commonly found in single-use disposable vapes, where the coil, wick and e-liquid container were designed to last for the device’s intended lifespan.
Because the atomiser is not replaceable, these devices cannot be maintained in the same way as refillable kits.
It’s also important to remember that single-use disposable vapes have been banned from sale and supply in the UK since 1 June 2025.
If you still have an old disposable vape at home, it should be taken to an appropriate electrical recycling point rather than placed in household rubbish.
- Clearomisers
A clearomiser is a type of vape tank that allows you to see how much e-liquid is left.
These are commonly used with refillable vape devices and usually have a replaceable coil.
When the e-liquid level gets low, you refill the tank. When the coil begins to wear out, you replace it.
Clearomisers offer more flexibility than sealed prefilled pods, although they require regular cleaning and maintenance.
You should also check that the tank is assembled correctly and that its seals are in good condition, as damaged seals or incorrect assembly can contribute to leaking.
Best suited for: Adult users who want a refillable system and don’t mind occasional maintenance.
- Cartomisers
Cartomisers are an older type of atomiser commonly associated with early cig-a-like vape devices.
The name comes from combining the words cartridge and atomiser.
A cartomiser typically contains both the e-liquid-holding material and heating element in one replaceable cartridge.
Once it is empty or no longer working properly, the cartridge can be replaced.
Although cartomisers are less common in modern vape kits, they played an important role in the development of today’s pod systems.
- Sub-Ohm Atomisers
Sub-ohm atomisers use coils with a resistance below 1 ohm.
They are commonly found in more powerful refillable devices and are often designed to produce larger amounts of vapour.
Many sub-ohm tanks also offer adjustable airflow and support devices with variable wattage settings.
However, they generally require more attention to coil compatibility, e-liquid suitability and maintenance.
Best suited for: Experienced adult users who understand device settings and coil requirements.
- Rebuildable Atomisers (RBAs)
Rebuildable atomisers are designed for users who want to install and maintain their own coils and wicking material.
Instead of simply replacing a ready-made coil, the user builds or installs the heating setup themselves.
This allows greater control over the device’s configuration, but it also requires a good understanding of electrical resistance, battery safety and compatible equipment.
Rebuildable atomisers are generally more suitable for experienced users rather than beginners.
How Often Should You Replace a Vape Atomiser?
There isn’t one replacement schedule that applies to every vape atomiser.
It depends on the device you’re using, how frequently you vape, the type of e-liquid and whether the coil can be replaced separately.
For example, with a prefilled pod system, you usually replace the entire pod once the e-liquid has run out.
With a refillable tank, you may only need to replace the coil while continuing to use the same tank.
A coil can sometimes last around one to two weeks, but this is only a general estimate. Some coils may last longer, while others may need replacing sooner.
Rather than relying entirely on a calendar, it’s better to watch for signs that the coil is wearing out.
Signs Your Vape Coil or Atomiser May Need Replacing
- Burnt taste: The coil or wick may be worn out or insufficiently saturated.
- Reduced flavour: Your usual e-liquid may begin tasting weak or different.
- Lower vapour production: The device may produce less aerosol than normal.
- Unusual gurgling or leaking: There may be a problem with the pod, coil or tank assembly.
- Visible damage: Cracked pods, damaged seals or faulty components may require replacement.
If you notice any of these problems, check your device’s instructions before replacing parts.
Can You Clean and Reuse a Vape Atomiser?
Yes, some atomiser components can be cleaned and reused, but it depends on the type of device.
Refillable tanks often have removable parts that can be cleaned to remove e-liquid residue and condensation.
For example, you may be able to rinse a suitable empty tank or removable mouthpiece with warm water, provided the manufacturer allows it.
However, not every atomiser component should be washed.
Prefilled pods are generally sealed and should not be opened, refilled or washed unless specifically designed for that purpose.
Similarly, most replaceable coil heads contain absorbent wicking material and are intended to be replaced rather than cleaned repeatedly.
Basic Atomiser Cleaning Tips
- Turn off your device before removing any parts.
- Remove the tank or pod according to the manufacturer’s instructions.
- Wipe away visible condensation and e-liquid residue.
- Clean only the components the manufacturer identifies as washable.
- Allow washed parts to dry completely before reassembling.
- Replace worn coils, damaged seals or faulty components when necessary.
Never submerge a vape battery or electronic device in water.
Regular cleaning can help prevent residue build-up and keep reusable components in better condition.
Can You Replace an Atomiser on a Vape?
In many cases, yes.
However, the replacement process depends on how the device is designed.
With a prefilled pod kit, the atomiser is usually built into the pod. Replacing the pod also replaces the heating element.
With a refillable tank, you may be able to remove the existing coil and install a new compatible one.
Some advanced devices allow the entire atomiser or tank to be removed and replaced.
Before buying replacement parts, always check compatibility with your specific device.
Using an incompatible coil, pod or tank can cause poor performance or damage the equipment.
Why Does My Vape Atomiser Taste Burnt?
A burnt taste is one of the most common signs that something isn’t working properly inside the atomiser.
The problem often occurs when the coil becomes too hot without enough e-liquid reaching the wick.
Several things can cause this.
- The E-Liquid Level Is Too Low
If you’re using a refillable device and the tank is almost empty, the wick may not absorb enough e-liquid.
This can cause the heating element to overheat the wick and produce an unpleasant burnt taste.
Check the e-liquid level regularly and refill before it becomes too low.
- The Coil Wasn’t Primed Properly
When installing a new coil in a refillable device, the wicking material needs time to absorb e-liquid.
Using the device immediately after filling can sometimes cause a dry hit.
Follow the manufacturer’s priming instructions and allow the wick to become properly saturated before use.
- The Coil Is Worn Out
Coils don’t last forever.
Over time, residue can accumulate on the heating element and the wick can deteriorate.
If your vape continues tasting burnt despite having enough e-liquid, it may be time for a replacement coil or pod.
- The Wattage Is Too High
Some refillable devices allow you to adjust the power output.
Using a wattage higher than the coil’s recommended range can cause excessive heating and shorten coil life.
Always follow the recommended wattage range printed on the coil or stated by the manufacturer.
- The E-Liquid Doesn’t Suit the Device
E-liquids have different VG and PG ratios, which affect their thickness.
Some smaller pod systems are designed for thinner e-liquids, while certain sub-ohm tanks are better suited to thicker formulations.
Using an unsuitable e-liquid can affect how effectively the wick absorbs liquid.
Check your device’s recommended e-liquid specifications.
Frequently Asked Questions About Vape Atomisers
Is an atomiser the same as a coil?
Not exactly. The coil is the heating element, while the atomiser is the wider system responsible for heating e-liquid and producing vapour. In everyday vaping discussions, however, the terms are sometimes used interchangeably.
Does every vape have an atomiser?
Yes. Vape devices need a heating system to turn e-liquid into an aerosol. The atomiser may be built into a pod, housed inside a refillable tank or integrated into the device.
How long does a vape atomiser last?
It depends on the design. A prefilled pod’s atomiser is used until the pod needs replacing, while a refillable tank may last much longer if its coils and other replaceable parts are maintained correctly.
Can a dirty atomiser affect flavour?
Yes. Residue inside a tank or on a coil can affect flavour and device performance. Cleaning reusable components and replacing worn coils can help.
Can you fix a burnt atomiser?
If the problem is caused by low e-liquid or an incorrectly set wattage, correcting those issues may help prevent further problems. However, once the wick has been permanently burnt, the coil or pod generally needs replacing.
Are vape atomisers universal?
No. Atomisers, coils and pods are not automatically compatible with every device. Always choose parts designed for your specific vape model.
Can I throw an old vape atomiser in the bin?
Disposal depends on the component. Complete electronic devices and batteries should go to appropriate electrical or battery recycling facilities. For used pods, coils and tanks, check local recycling guidance and any available manufacturer take-back scheme.
Disposable Vape Ban in the UK: What You Should Know
Since 1 June 2025, businesses in the UK have been prohibited from selling or supplying single-use disposable vapes, including nicotine-free versions.
The ban does not mean every vape device is prohibited.
Rechargeable vape kits and reusable pod systems can still be sold, provided they meet the applicable UK requirements.
For adult users, understanding the difference between built-in and replaceable atomisers can help when choosing compatible replacement pods, coils and other maintenance parts.
If you have an old disposable device, remember that its battery and electronic components should be recycled through an appropriate collection point.
Final Thoughts
An atomiser might sound complicated, but its purpose is straightforward: it heats e-liquid so your vape can produce an aerosol.
The main difference between atomisers comes down to how they’re built and maintained.
Prefilled pod systems usually have sealed atomisers that are replaced along with the pod. Refillable tanks often allow individual coils to be changed, while rebuildable atomisers offer more control for experienced users.
Understanding how your atomiser works can make it easier to recognise common problems, maintain your device and know when something needs replacing.
For more practical vaping guides, device information and maintenance tips, explore the latest articles at Nemo Homes.