Vaping FAQs

Electronic cigarettes are relatively new and finding the right product to suit your needs, as well as succinct answers to questions you may have, can be a minefield. This is a short list of our most frequently asked questions from e cigarette users:

How do electronic cigarettes work

The e cigarette consists of 2 parts:

  • A battery, which powers the device.
  • A cartomizer or tank, which contains a coil of resistance wire which vaporises e-liquid from a reservoir.

With a manual battery, pressing the button will cause it to fire. Power is delivered to the coil, which then heats up, vaporising the e-liquid which is then inhaled.

When using an automatic battery, taking a draw on the cartomizer or tank will automatically cause it to fire.

Are electronic cigarettes safe?

E cigarettes contain nicotine; unless you are buying a 0mg strength e-liquid or pre-filled cart. Of course, there are risks associated with using e cigarettes - nicotine can raise your heart rate as well as having a few other side-effects, which are very similar to those associated with caffeine, and compared to the harm caused by tobacco cigarettes they present a far lower risk. Tobacco cigarettes contain around 600 ingredients which, when combusted, change to over 3000; 76 of which are known carcinogens.

E cigarettes contain 3 main ingredients: Propylene Glycol (PG) which carries the flavour and produces the throat hit or feel of smoking, Vegetable Glycerine (VG) which is smoother inhale and produces more vapour, and nicotine which also contributes to the throat hit.

There are usually often flavourings included, bringing the total to an average of about 16 ingredients, none of which are known carcinogens. There is no combustion in an e cigarette, therefore the ingredients do not change chemically to create other more harmful substances.

Although nicotine is very addictive, it is relatively harmless on its own, as is Propylene Glycol, which is used in many products such as asthma inhalers and smoke machines and Vegetable Glycerine which is used in cough syrups and food.

Since 2006, when e cigarettes were brought to market, many tests, studies and reports have been published to prove the safety of e cigarettes, though more research needs to be done to examine any long-term effects. What we do know, courtesy of Public Health England, is that e cigarettes are at least 95% safer than continued tobacco use.

However, e cigarettes cannot be considered truly safe due to their nicotine content and the lack of longer term studies. While there is a lack of long term scientific data to reference, compared to smoking tobacco, e cigarettes certainly offer large advantage as they do not contain tar, carbon monoxide, and all the other extremely harmful by products of a traditional cigarette.

Are electronic cigarettes regulated?


As with all products sold in the UK e cigarettes are subject to general product safety regulations. If applicable, products also must be tested and CE/WEEE/RoHS marked in accordance with the new approach directives. Additionally some products, such as e-liquid, must be labelled in accordance with the CLP regulations

Customer safety is of the utmost importance, and all chemicals and electrical equipment sold in the EU are subject to these regulations so that chargers and batteries are deemed safe for use. An e cigarette is subject to the same standards and regulations as all electrical devices sold in the EU, from phones to mp3 players..

In addition, as of May 2016, the manufacture and sale of electronic cigarettes are subject to specific regulations under the Tobacco and Related Products Regulations 2016.

These regulations set out strict guidelines covering the quality, safety, and traceability of ingredients used in the production of e-liquid containing nicotine, as well as technical restrictions on certain products such as tanks and refill bottles. The regulations also require manufacturers provide the MHRA with documents for each regulated product including test reports on the toxicology, emissions, and nicotine dosage of the product.

The technical restrictions of the new regulations limit tanks and carts to a capacity 2ml, bottles of e-liquid (that contain nicotine) to 10ml, and the maximum strength of e-liquid (and prefilled carts) to 20mg/ml.

The new regulations have been in full effect from 20 May 2017 so only products that are compliant are able to be sold.

The TRPRs also set out new packaging and labelling requirements, as well as placing limits on advertising.

JAC Vapour comply to all necessary legal regulations.

Is your eliquid safe?


As per the requirements set out in the TRPRs all of our e-liquid and pre-filled carts are tested to ensure that all constituent components are safe for use.

Test reports for each e-liquid product covering; toxicology, emissions, and nicotine dosage, are available on the MHRA’s dedicated notification website.

JAC Vapour is known within the industry for its high quality products and the reputation of the company rests on it meeting all regulatory requirements.

Do electronic cigarettes work?

The short answer is, yes they do. You may have come across various cheaper or less advanced models sold in kiosks, convenience stores, garages, or on board aeroplanes; you may have even tried one. Our products are not the same.

Technology has advanced and quality e cigarettes are now very good at mimicking the sensation of a real cigarette. The models we sell are some of the most popular and best on the market because they're very easy to use, produce a large amount of vapour and give a good ‘throat hit’ (the feeling associated with drawing on a traditional cigarette).

Alternatively, we also have models available which feel nothing like smoking and offer a very different experience for people wanting to get away from that sensation altogether.

It may take a little trial and error to find the perfect e cigarette for you, but once you do we’re sure you’ll be amazed!

Will I experience any side effects?

It is not uncommon for some customers to report experiencing side-effects after using an e cigarette. In almost all cases, this is down to an intolerance to the main ingredient in most e-liquids: Propylene Glycol (PG). This usually manifests itself as tightness in the chest, or sometimes as a rash on the skin. For these customers, we recommend switching to a liquid higher in VG (Vegetable Glycerine) instead. For those with a more severe allergy, we recommend switching to a 100% VG e-liquid, available in our picNIC DIY range.

Another common side-effect of using an e cigarette is dehydration. This is due to the PG, which can dehydrate. Simply increasing your water consumption is usually enough to counter-act this.

What is the 'smoke' that is released?

It’s not smoke that is released, it's a vapour made up of a mix of PG and VG which is the delivery method for the nicotine in the eliquid. The vapour gives a sensation very similar to a real cigarette. Full details of the contents contained in the vapour can be found here:

Does the e cigarette vapour smell?

The vapour smells very slightly of whichever flavour you are using, but disappears almost immediately. It does not cling to clothes or cause any discolouration to walls, teeth or fingers. It does not smell on your breath or hair either. Some of the stronger flavours like coffee do have quite an obvious smell, but it doesn't linger though.

What is an electronic cigarette not?

Nicotine Replacement Therapy. E cigarettes are not a product designed to help you quit smoking; they are a safer alternative to smoking that many people choose to use instead. We make no claims to the contrary, though we are always happy to hear that our customers have chosen to move away from tobacco cigarettes completely.

Will my battery last forever?

No, but you should get a significant amount of use out them before they need to be replaced. The cigalike V3i batteries will last on average for around 2-3 months.

Our larger vape pen batteries (such as the SERIES-S) will last around 4-6 months before they need to be replaced.

In both cases, regular cleaning and care is advised in order to get the most out of your battery. Some customers are still using their batteries after 6+ months if they have been particularly well looked after. For our video guide to cleaning your batteries, check out our JAC Vapour YouTube Channel.

How long will my battery last between charges?

This is something that really depends on a few various factors. Every user is different and how heavily they use their e cigarette will affect the battery life, however there are some things that you can control. Using a battery with a larger capacity (mAh) will give you a longer life between charges. it's important to note that this will also increase the size of your battery.

The smallest battery that we sell at present is a 55mm 150mAh V3i, which will give around 1.5 hours of heavy use. The largest pen-style battery that we offer is the 900mAh SERIES-S battery which will last most users most of a day before needing to be recharged.

We also offer very high capacity IMR batteries for our SERIES-B devices, which can last for a day or even two with a Mouth To Lung tank, but around half a day with a sub-ohm Direct Lung tank being run at very high wattages.

What customers need to work out for themselves is how much importance they place on portability and size, and how valuable a longer life battery is to them. If you would like any advice on a particular battery or kit, get in touch with our customer service team and we’ll be happy to help you make a decision.

Why do people use electronic cigarettes?

Everyone is different, but most people choose to use an e cigarette so that they can move away from traditional cigarettes. E cigarettes offer a healthier alternative to smoking, which is part of an informed lifestyle choice.

A big factor for a lot of people is the cost. Compared with traditional cigarettes, which can cost more than £240 per month (based on a pack of 20 per day), e cigarettes offer a much cheaper alternative.

For example:

Our popular SERIES-S kit sells for £24.99 and this includes one 10ml bottle of e-liquid. Using this kit with two bottles of e-liquid a week, and one pack of coils for the month, would set you back just £50 for the first month, and just £20 a month after that in running costs.

Will an e cigarette help me quit smoking?

While many of our customers tell us that e cigarettes have helped them move away from traditional cigarettes entirely, it must be remembered that e cigarettes are still a delivery device for nicotine and are not designed as a quitting aid. E cigarettes simply allow users to enjoy a healthier alternative to smoking.

Which e cigarette should i choose?

It is important to note that an electronic cigarette is a piece of technology and as you move from being a beginner to an expert, your preferences and need may change.

Many products, such as our popular V3i range, resemble a traditional cigarette in terms of design and size. Often, these are called 'cig-a-likes' due to their resemblance to traditional cigarettes. These are great for new users who are keen to have a product that is as close as possible to the cigarettes that they are used to smoking. They are portable, with a small profile which is great for those who are self-conscious and want to blend in.

Most customer may start with cigalike style e cigarettes, but find that they wish to try something that lasts a bit longer, or offers more power or a bigger throat hit.

Larger profile batteries, such as our SERIES-S kits are more efficient and offer a much longer battery life for those who want to have to recharge as infrequently as possible. The larger batteries also offer a larger amount of flexibility.

More advanced box mod devices, like our SERIES-B Tilt and DNA 75W are also becoming increasingly popular. These offer the greatest battery life or any device, allow you to change the power of the device to suit you, and are usually also capable of running sub-ohm resistance coils.

What is the difference between E Cigarette Carts and Tanks?

While most customers start off by using cartomizers, many choose to move on to using tanks instead.


Cartomizers resemble the filter on a traditional cigarette, and are screwed on to the battery to form the assembled e cigarette. Cartomizers contain an atomiser, wick and wadding, which together allow the vaporisation of e-liquid. The wadding is saturated by, and acts a storage device for the e-liquid. The wick then feeds e-liquid into the atomiser, where it is pulled across a heating element, creating the vapour. Our carts are available either pre-filled with e-liquid, or as blanks. Each of our carts are able to be refilled around 10 times.

Your cartomiser will start taste a little like burnt cotton when it has run dry – this is your indication that you should either replace it or refill it with your e-liquid. For more information on carts, visit our cartomizer help section.


Tanks, on the other hand, are much larger in size and are able to hold more liquid than cartomizers. Tanks are a large, empty vessel, which contain an atomiser and wick similar to those found in a cartomizer. The coil in a tank stays submerged in the e-liquid. Pressing the button on your devices causes this coil to heat up, which in turn vaporises the e-liquid which is held in the cotton wick of the coil.

The advantage that carts have over tanks is their portability and ease of use, particularly if you are using the pre-filled versions. Tanks, on the other hand, allow you to go longer between refills and they also allow you to use a lower or higher resistance coil instead of the standard 2.4Ohm version that comes supplied. Tanks also save you money, as you only need to replace the coil every few days. Your tank will still degrade over time as it is a consumable item and the seals do break down with use, however this is still considerably cheaper than purchasing disposable carts.

The resistance of the coil will help to determine your devices vapour production and throat hit, as well as how well flavour comes through. A low resistance coil (1.0ohm in the case of our S-Coils), will produce more vapour and throat hit, though there may be an effect on flavour. A higher resistance coil (1.8ohm in the case of our JOC Wick PT3 coils), will generate less vapour and throat hit, but this does allows flavour to come through more cleanly.

It's best to think of the coil like the filament in a lightbulb, the power delivered by the battery causes it to heat up in just the same way. The resistance of the coil determines how much it will heat up, and as a result, how much vapour will be produced.

If you require further information regarding tanks, see our tanks product support page.

What's the difference between a prefilled cart and a blank cart and a tank? What is eliquid? Help!

Many customers choose to start off using pre-filled carts, due to their simplicity. These are available already filled with a range of our e-liquid flavours and can easily be screwed on to your battery for ease of use.

We also offer a range of unfilled (also known as blank) carts which allow the user to fill the cart with their own choice of e-liquids. This is great for those who want to mix flavours, or strengths to fine tune the hit that they desire from their e cigarette. All our cartomizers can be refilled around 10 times, which is much more cost-effective than using pre-filled carts long-term.

For instructional videos, visit our JAC Vapour YouTube Channel - we have an instructional video that shows you how to fill your cartomisers with e-liquid and many more.

What's the difference between PG and VG eliquids?

While most our e-liquids will contain a mix of both ingredients, you can select one that is made up mainly of PG, or one that is primarily VG. We use a 50:50 ratio our Standard e-liquid range and a 70:30 ratio in our UK Made range.

Propylene Glycol (PG) is the ingredient that is found in almost all e-liquids and usually is present in the largest quantity. PG is very effective at carrying flavour and producing throat hit, meaning the e-liquid produces a satisfying vape.

Vegetable Glycerine (VG) on the other hand, is far better at producing vapour which is essential for accurately simulating the act of smoking a tobacco cigarette. VG is much thicker and sweeter than PG which makes it a little more difficult to work with and not as great for conducting flavours.

We use a mix of the two to get the best of both worlds and would recommend using a PG e-liquid normally. Some users, however, may have an intolerance or an allergy to PG, meaning that they should try a VG e-liquid instead.

In the case of severe allergy, we would recommend using a 100% VG e-liquid, available in our picNIC range.

Which strength of eliquid or cart do I need?

This can sometimes be tricky to get right, but based on customer feedback we generally recommend starting at 18mg if you are used to smoking around 20 cigarettes of normal strength per day. If you normally smoke ‘Light’ cigarettes we would recommend you start on 12mg. You can then fine tune how much you use your e cigarette and mix the various flavours and milligrams to satisfy your cravings.

We also offer e-liquids at 0mg, 3mg (in our VG liquids) 6mg, 12mg and 24mg. Most of our flavours come in 0mg, a nicotine free version – essentially meaning you will be puffing flavoured vapour!

Our tobacco essence based e-liquids (Real Tobacco Gold and Real Tobacco Silver) contain trace nicotine content at their lowest milligram, as due to the nature of these products it is impossible to completely remove the nicotine from these e-liquids.

There are so many batteries to choose from... I'm confused

Not to worry. For new users, the sheer variety on offer can be a little overwhelming, but we've broken down all of the various things you need to know to choose the best fit for you.


  • The SERIES-S vape battery is designed to work with the low resistance coils in our S-17 tank, giving you unbeatable vapour and throat hit.
  • This battery is also capable of running the sub-ohm Direct Lung coils available for the S-17 tank.


  • These high-powered batteries are designed to be used inside a box-mod device, such as our SERIES-B Tilt.
  • These batteries can’t be used on their own, and should be carried inside a case when not installed inside a device.


  • These are similar in style and size to a traditional cigarette and work with our 35mm, 50mm cartomisers and V3i Mini Tanks.
  • *Note that these use a KR-808 connection and are not compatible with our JAC 510 range.

Where can i find more help