Following the recent news of the single-use disposable vape ban expected to begin on 1 June 2025, companies like Aspire have quickly transitioned towards a more sustainable future to help the environment. The Aspire R1 vape we will review below is a smart alternative that can be recharged and refilled before being disposed of.   

What this offers vapers is a longer-lasting device which means a reduction in battery waste and more money in the pocket! Let’s check out its key features and what type of vaper will enjoy this compact vape.   

Can it Be Used as a Transitional Device for Smokers?

The Aspire R1 vape, also known as the ‘One Up’ on previous models as a second-generation kit, is very easy to operate. With a tiny form factor, no buttons to press and quick charging capabilities, it is tailor-made for smokers looking to quit. In addition, because of its simple format, the R1 vape is also perfect as a backup for more experienced vapers.   

Easy to refill with a fixed coil and set at a decent price below £10, you can use a range of high PG and nic salt e-liquids. This therefore means it is set up to provide a gentle throat hit to create an easy transition away from cigarettes towards a tobacco-free vape kit. 

What Do You Get With the Kit?

• 1 x Aspire One Up R1 Disposable Kit  
• 1 x User Manual  
• 1 x USB Type-C Charger  

How Does the Aspire R1 Kit Perform?

The performance of the Aspire R1 is top-notch, creating a smooth and consistent vape throughout the life of the 0.8 Ohm mesh coil. Whether this device is right for you depends on the experience you like when inhaling. Because there is no airflow adjustment or wattage control, this means you are very limited in terms of customisation.   

For example, you can not tweak the cloud production, except by taking bigger puffs, which will drain your battery at a faster rate. The wattage and airflow are kept low to minimise the vape experience. But for an MTL vape paired with a high PG e-liquid, we can not fault the delivery.   

The Aspire pods fit very snuggly on the top of the device with very little wiggle room, meaning a secure vape at all times. And because there are no buttons to press, it is very unlikely your device will go off in the pocket or bag unexpectedly. 

How to Use the Aspire R1 Vape Kit: Quick Setup Guide

1. Start by removing the silicone stopper to top up with your favourite nic salt or freebase e-liquid.  
2. Allow the vape juice to saturate the 0.8 Ohm coil for 5-10 minutes.  
3. If the battery is low, pop the charger provided into the port located at the bottom of the R1 device.  
4. To activate the device, simply puff on the fixed mouthpiece.  

While some vapers may wish for a bright LED display, with this device you can not expect a super high quality for the price point. Aspire has made a pod vape kit that provides more use than disposables and the option to refill your pod multiple times and not compromise on performance.

The layout is designed so that you do not need to think about coil changes or wattage alterations. The Aspire pods are very clear so you know when to top up with e-liquid and the device is small enough to transport around and vape comfortably from the hand.   

What E-Liquid is it Best Paired With?

As we mentioned briefly earlier, the Aspire R1 vape should be only paired with high PG e-liquids or nic salts. At a stretch, you could have 50/50 e-liquids but not higher than 50% VG due to the 0.8 Ohm coil being the only option.  

What these ratios mean is with a higher PG or nic salt vape juice, the consistency of the e-liquid is thinner than a high VG e-liquid and therefore more suited to the higher resistance coil. It will prevent a burnt taste with your vape juice and ensure the coil lasts longer.  

Battery Life and Charging

There are no major complaints about the battery capacity. With an internal 650mAh battery, it should be enough to last at least one day but this depends on usage.  

Considering the coil resistance is 0.8 Ohm mesh and the wattage is fixed and low, the puffs should be minimal and less frequent, especially with nic salts. Therefore, the battery will deliver throughout the day and is unlikely to require a recharge until the evening.  

Once you do need to charge the R1, it takes roughly 40 minutes for a full charge, so even if you need a 10-minute boost in the daytime, that should be sufficient to last until a full charge is required.  

Sit back and read on as we explain all of the key features and potential drawbacks of the latest device from the Uwell Caliburn series – the Uwell Caliburn A2S, with our comprehensive review.  

Set at a reasonable price of under £15 with two refillable pods included with the pack, it’s a decent little kit to get you started in vaping as you move away from disposable vapes that are single-use and certainly from cigarettes, which we know poses serious risks to human health.  

This review will explain all you need to know so you can understand if the Uwell Caliburn A2S is the right product for your vaping experience.   

Can it Be Used as a Transitional Device for Smokers?

Absolutely, Uwell is renowned for creating vape kits that help people put down cigarettes for good and swap them for an electronic device that provides the necessary nicotine, throat hit and flavour performance.   

This is all thanks to the Pro-Focs pods technology that is synonymous with the Caliburn range.  

With a simple yet effective design, operational functionality and side fill method, the device is as easy to top up with e-liquid as it is to vape.  

Like most popular devices that cater to former smokers, the A2S is automatic draw inhalation by puffing on the mouthpiece like you would a cigarette. The pods offer a 2ml capacity to store enough e-liquid and mesh coils to maximise flavour.   

How Does the Caliburn A2S Perform?

It is exactly what you get for under £10 from a brand as big as Uwell. The device is reliable and offers a discreet amount of flavour to replicate the sensation of smoking without inhaling thousands of dangerous toxins.  

The flavour itself is stellar, utilising the patented Pro-Focs technology they are renowned for and consistently good from the first puff to the last of the 2ml Uwell Caliburn A2S pods.  

And because it’s auto-draw only, the transition from smoking to vaping is a seamless switch.   

How to Use the Caliburn A2S Pod Vape Kit: Quick Setup Guide

1. The device turns on automatically when the pod is inserted on the top of the battery.  
2. To charge, put the USB cable into the port at the bottom of the device.  
3. To fill the device, pop the plastic plug on the side and fill it with your chosen e-liquid.  

Appearance and Best Layout Design Features

It is a smart intuitive device that does not require any adjustment of wattage, or alteration of the pods. What we like about this device is the large comfortable mouthpiece and the very clear e-liquid window.  

And even better yet, the pods are just as visible so you will always be aware of how high or low the vape juice levels are to prevent a burnt coil.  

This means easy vaping and simple filling of whichever e-liquid suits you at the moment!  

Another cool addition to the Caliburn A2S is the LED ‘animated light matrix’ which creates an element of intrigue for onlookers catching a glimpse of the device. The device itself is available in six colour schemes, including gradient, black, gold, purple, grey and blue. 

What E-Liquid is it Best Paired With?

Thanks to the mesh coils that you can use with the Uwell Caliburn A2S, this ensures long-lasting consistent flavour. But how do you pick the right e-liquid to go with the device?  

Well, the pod coil resistance of 1.2 Ohms is a good indicator, highlighting a tight mouth-to-lung draw which means it would be best paired with a high PG e-liquid. But 0.9 Ohm pods are compatible with the kit too, which are purchased separately.  

Therefore, you will want to choose a thin e-liquid with a tobacco, menthol or fruity taste based on personal preference to pair with the A2S and experience a similar sensation to smoking.  

Battery Life and Charging

The Uwell Caliburn range is not known for its huge battery capacities, so this factor depends on how frequently you use the device. For example, the Caliburn A2S offers a 520mAh battery life, which isn’t huge but not the smallest either.   

If you charge it first thing in the morning before leaving or just before bed, it should be enough to last a mouth-to-lung vaper the majority of the day but may still need an additional charge if frequently vaped.  

What we do like is the LED battery indicator, which makes the logo flash when it’s charging. The time it takes to fully charge is very quick at 40 minutes for a full charge thanks to the type-c port, so overall it’s a good quality battery but would ideally be a bit bigger capacity for future pod devices from Uwell.  

Final Verdict

To summarise, this is another device in the Caliburn series which as a stand-alone product (if you have never owned a Caliburn before) would be a welcome addition to any MTL vaper. It is compact, lightweight to hold at 30g and very simple to use with features like auto-draw and fast charging capabilities.   

Compared to the other Caliburn kits (more than 20 available at the time of writing), it is quite like previous models such as the A2 and A3 Caliburn devices with the same Pro-Focs pod technology and build quality.   

The battery capacity is a bit on the small side, but overall, the Caliburn A2S is a stylish and effective kit for vaping on the go, boasting two pods for added value to get any vaper off to a good transition from smoking and certainly saves money compared to disposable vapes!  

Welcome to another review of a vape kit from a brand that may have lost a little bit of its popularity in recent years but still knows how to deliver a device that produces plenty of clouds!  

You’ve guessed right – it’s Smok with their Nord C device that boasts a whopping 1800mAh battery kit that fits in the palm of your hand. A stealthy-looking pod vape but with the power and clouds to achieve that maximum flavour when needed.  

Let’s take a look at the aesthetics of the Nord C, who the device is intended for and whether the Nord series is still going strong or this just a carbon copy of their previous designs.  

Can it Be Used as a Transitional Device for Smokers?

With this device, in particular, the Smok Nord C can certainly help people quit. With a variable wattage of 5-50W, it does have adjustable power that can mimic the sensation of smoking in terms of cloud production. Stealthy, discreet and minimal to not attract large crowds (if that’s what you want). Should you prefer a mouth-to-lung vape, the 0.6 coil at the recommended output between 12-25W is perfect with this dual mesh coil.  

But the star of the show has to be the 0.16 Sub-Ohm coil. Whether this high amount of cloud production is right for you depends on how much you smoked in the past. This output indicates you prefer a high wattage (best recommended at 40W) paired with a high VG e-liquid. It will be low nicotine (0mg, 3mg or 6mg max) vape juice, so it depends on how high you want the nicotine level to be when selecting the coil.  

What the Nord C does show whichever option you pick is versatility. Because you have two coils with the packaging, a large battery capacity and adjustable airflow, you will find a style to suit your personal preference.  

How Does the Nord C Perform?

As we’ve come to expect from Smok over the years, they know how to make a cloud-chasing device that boasts excellent flavour throughout the coil life. However, we’ve also seen many Smok devices, whether with the compact Nord series or the larger box mods that the tanks or pods can leak from time to time.  

The flavour is fantastic from the Nord C and whether you pick the MTL or DTL coil, the battery life at 1800mAh is a high-quality amount, so you shouldn’t need to charge the device during the day even if you chain vape a low resistance coil.  

How to Use the Nord C Pod Kit: Quick Setup Guide

1. Five clicks of the fire button to turn the device on or off (no auto-draw option!)  
2. Click the up button to change the wattage.    
3. The display highlights the puff counter, wattage, Ohms and battery percentage indicator.  
4. To change the airflow, flick the stepless airflow switch on the back.  
5. Press the down button and fire button together to clear the puff counter.  
6. Hold the up and down buttons together to lock the selected wattage. Press again to unlock the Nord C.  

Appearance and Best Layout Design Features

The Nord C stands out like all the devices in the Nord series because of the handheld nature, lightweight feel and yet impressively long-lasting battery.  

What we love about the Nord C is that any spills are kept to a minimum. This is because of the snap-back pod to fill your e-liquid with a top fill method. It’s the most efficient fast way to vape on the go and highlights the ultra-convenience of this device.  

The screen flatters to deceive despite being OLED. But the colour schemes are stylish and it has that honeycomb pattern that the Nord series is known for. Colours include a professional and discreet transparent Black, as well as pink purple, pink, transparent red and transparent blue.  

What E-Liquid is it Best Paired With?

Take your pick! Because the Nord C kit comes with two coils for MTL and DTL vaping, you have a plethora of e-liquids to pick from. If you like a tighter draw, then go for a high PG or 50-50 e-liquid that will pair excellently with the 0.6 coils. It will be a looser draw than a classic MTL vape, but it still does a good job!  

Alternatively, you can choose a high VG e-liquid which is what we recommend with the Nord C, which is geared more towards Sub-Ohm vaping. With so many sweet and savoury e-liquids to pick from, the Nord C can help you drop your nicotine levels and test some interesting flavours simultaneously.  

Final Verdict

Overall, this is a fantastic device from the Nord series that we would recommend for lots of different vaper styles and stages of their nicotine cessation journey. Considering the battery size, two different coils with the kit and stylish design, there are many bonus points to having a device like the Nord C from Smok in your collection.   

Granted there are a couple of minor details we flagged but this is perfect for those who want to vape direct to lung but do not need to carry around a large box mod. It can vape with both styles but is definitely a kit suited more for Sub-Ohm coils and cloud chasing.  

Elf Bar is one of the most popular disposable vape brands on the market today. The brand is also well known for its reliability, which means that it’s likely to be a fairly disconcerting experience for you if your device stays on and continues to make noise after you puff on it. This situation is known as “auto-firing” within the vaping community. Every type of vaping device is susceptible to auto-firing under certain conditions. Although it’s usually fairly easy to resolve, it’s also potentially dangerous – so it’s important to address the issue right away.

An Elf Bar has a built-in airflow sensor that causes the device to produce vapour when you puff on it. The airflow sensor is a very simple component; it’s a flexible membrane that moves and completes a circuit when air flows through the device. The reason why an Elf Bar or other vape begins auto-firing is because the membrane is stuck, and that usually happens because of a leak or because the device is damaged.

If your Elf Bar is staying on and making noise, you need to address the problem quickly because there is a risk of fire if the battery overheats. In this guide, we’ll explain exactly what you need to do.

Stop the Elf Bar from Auto-Firing if Possible

If your Elf Bar is staying on after you puff on it, the first thing that you need to do is make it stop if you can. You can do that in two ways.

• Blow hard through the Elf Bar’s mouthpiece. In most cases, a strong puff of air will be sufficient to dislodge the stuck puff sensor and get the device to stop auto-firing.
• If blowing through the device doesn’t make it stop auto-firing, try tapping it against your hand a few times.

In most cases, you can make an Elf Bar stop auto-firing using one of the techniques detailed above. If you’re able to do that, you can safely continue using the device. It’s important to remember that even if you’re able to unstick the puff sensor, though, some e-liquid will likely remain on it. Because of that, the sensor will most likely get stuck again in the future. You’ll probably need to unstick the sensor repeatedly until the device runs out of e-liquid.

Move the Elf Bar to a Fire-Safe Location if It Doesn’t Stop Auto-Firing

If you can’t get your Elf Bar to stop auto-firing after you puff on it, the device isn’t safe to use because the battery may potentially overheat. You can minimise the fire risk by moving the Elf Bar to a fire-safe location and waiting for the battery to die. Most Elf Bar models have small non-rechargeable battery packs, so your device’s battery should die in just a few minutes. Here are two suggestions for how to handle this.

• You can bring the Elf Bar outdoors and cover it with dirt.
• You can put the Elf Bar in a cooking pot. Make sure that nothing flammable is above the pot.

After allowing several minutes for the Elf Bar’s battery to die, check the device to confirm that it isn’t still hot. Once you’re certain that the Elf Bar is safe to handle, dispose of it in accordance with your community’s guidelines for hazardous waste.

Prevent Your Elf Bars from Auto-Firing in the Future

As we mentioned at the beginning of this article, it’s possible to experience an auto-firing issue with any type of vaping device. With that in mind, it’s important to know what you’re going to do if that happens. In this guide, we’ve provided steps that can help you either fix an Elf Bar that’s staying on after you puff on it or secure it safely while you wait for the battery to drain. Once you’ve resolved the issue at hand, your next priority is to ensure that you won’t have the same problem with future devices. These are the things that you can do to avoid an auto-firing Elf Bar.

• Make sure that you have an authentic device. Because Elf Bar is such a popular brand, it is often counterfeited – and fake vapes are much more common than you might think. Millions of fake Elf Bars have been seized by law enforcement agents over the years, which likely means that millions more have shipped out undetected and eventually ended up on store shelves. Don’t buy Elf Bars from a corner store or any other retailer that doesn’t specialise in vaping products. A reliable vape shop like V2 Cigs UK will buy its products only from the original factories or from wholesalers authorised by the manufacturers, ensuring that you won’t end up with a counterfeit product.
• When you puff on your Elf Bar, be careful about how much air pressure you use. The most common reason why an Elf Bar stays on and makes noise after you puff on it is because e-liquid has leaked out of the device’s wick and contaminated the puff sensor. That usually happens because you’ve puffed on the device too firmly and flooded the heating coil. It’s easy to determine whether you’re using the correct air pressure when you use your Elf Bar; just watch the device’s LED. There’s no need to puff any harder than is necessary to make the LED turn on.
• Always take care of your Elf Bar devices. Do your best to avoid dropping your vape on a hard surface or in water. If an Elf Bar begins auto-firing because it’s damaged, it’s less likely that blowing through the device or tapping it against your hand will resolve the issue. Dropping your device in water can even result in a potentially dangerous short circuit.

Wrapping Up

Reading this article, you’ve learned what to do if you have an Elf Bar that’s auto-firing. In most cases, fixing the problem is as simple as blowing firmly through the device or tapping it on your hand – and once the puff sensor is unstuck, you can resume using the device. If you’re unable to fix the problem, quick action on your part will allow the battery to drain safely, so you can dispose of the device. If you buy your Elf Bars from a reliable seller and take care of them, you’ll minimise the chance of encountering an auto-firing vape again in the future.

Back in 2019, the UK government announced bold plans for England to become ‘smokefree’ by 2030, meaning an adult smoking prevalence rate which falls to 5% or less of the population. Fast forward four years and only seven at the time of writing from that target date, is the plan an ambitious achievable one or now unrealistic? 

As we have seen in the past decade, particularly during the COVID-19 pandemic, smoking numbers are falling, which is a great sign, but at the same time there are still six million smokers in the UK. Below we evaluate what’s happened during the four years, some interesting new developments in the news and whether the UK can achieve the goal of Smokefree by 2030. 

Key Statistics About Smokers and Smoking Cessation

Below are just some of the key stats taken from a recent study by ASH (Action on Smoking and Health Organisation) that highlights how smoking impacts social groups and potentially generations to come if it’s not stopped.  

• Nearly twice as many smoking-related cancers are diagnosed in the most deprived quintile of the adult population of England every year compared to the least deprived quintile (11,247 vs. 6,200). 
• People living in social rented housing are 3.8 times more likely to smoke than people who own their properties outright (28.6% vs 7.6%).  
• People with routine and manual occupations are 2.5 times more likely to smoke than people with managerial and professional occupations (23.2% vs 9.3%). 
• The prevalence of smoking is 25.8% among people with a long-term mental health condition and people with anxiety and depression,9 and 40.5% among people with serious mental illness. 
• Women living in the most deprived areas are more likely to smoke throughout pregnancy (66.6% of those who were smokers at conception are still smokers at delivery) than women in the least deprived areas (57.7% are still smokers at delivery). 

Why Has the Smokefree Plan Stalled? 

Only last year, prominent health organisation Cancer Research UK stated that it would be more like 2039 that the target of 5% or less prevalence is achieved by the UK government based on current projections. Currently based on their estimates, this is a more realistic timeline unless policies drastically change, and we witnessed instead a 70% increase in pace on the original set timeline. 

So, what is the UK doing wrong? 

Well, to begin with, they are sending mixed messages to not only key influential figures but the population as a whole by not following through with their initial message that e-cigarettes are 95% safer than smoking cigarettes. Instead, they publish government reports and we also see in the media (free press) all types of sensationalist ‘studies’ that scaremonger the public into believing that vaping is just as dangerous.  

What much of this centres around in the news and reports is a high number of articles about the dangers and easy accessibility of black market vapes and even legally sold disposable vapes, which offer an entry into vaping for young non-smokers.  

Already we’re seeing a clamp down on this with countries like Australia, New Zealand and the US imposing heavy sanctions across the e-cigarette market, which is already heavily regulated. The UK needs to draw a line and back up their initial claim that vaping is significantly safer as an alternative than smoking. 

The plan to get the UK Smokefree by 2030 also requires more funding at the government level for stop smoking services, as well as further campaigns and clear messaging that smoking is an inevitable killer. While the Khan review of 2022 highlighted the steps the UK government needs to take to reduce smoking numbers, we are still yet to see a 2023 tobacco control plan update which was expected midway through the year. 

What is the Latest UK Government Plan for Smoking Cessation? 

Finally, we have seen a positive step from UK Prime Minister Rishi Sunak with his recent announcement to increase the smoking age by one year every year so that eventually cigarettes are removed altogether. 

With that in mind, the plan would mean a child aged 14 today would never be allowed to buy tobacco. A bold move that may define his time as PM, and interestingly with no opposition from other parties such as Labour. The law has already been set by New Zealand that it will be illegal for anyone born after 2008 to buy a cigarette, so could the UK soon follow? Based on 500,000 admissions to NHS hospitals every year because of cigarettes, clearly something needs to be done. 

As highlighted in the Khan review, other measures need to be followed for the 2030 goal to become fact and not fiction. Unless steps such as improving prevention in the NHS and promoting vaping through government-backed initiatives are not supported, that 2030 target will quickly pass. 

Each year we know that roughly 76,000 people die from cigarette habits. Organisations like the NHS are trying to put a stop to that by offering services and alternative products that can help smokers quit. One of those recommended products is e-cigarettes, which also contain nicotine (an addictive substance) like cigarettes.   

But there has always been a real curiosity about how much nicotine is actually in each vape kit. Compared to cigarettes, which are not only bad for your health but always have a distinctive smell and taste (impacting the senses of humans who smoke), vaping is available in different flavours and formats.   

Recently, there has been a surge in the popularity of disposable vaping. But with a TPD regulations maximum capacity set of 2ml per disposable, just how much nicotine is inside each puff bar?  

The Amount of Nicotine in a Cigarette  

Studies over the years have varied with results regarding nicotine levels within each individual stick contained in an average 20 pack of cigarettes. Generally, the consensus is that most cigarettes contain between 11.9 mg and 14.5 mg per stick, but not all of that is absorbed.   

This is because the concentration is diluted due to varying factors, such as the nicotine content itself, how a person puffs a cigarette, individual frequency of smoking and the design of the product. So in fact, it’s typically closer to 1-1.5mg of nicotine actually inhaled and absorbed per cigarette.  

It’s important to know this so we can figure out as close an estimate as possible in comparison to absorbing nicotine through vaping. What’s important to note between the two is the other chemicals absorbed into the body.   

While there is still limited research into long-term use, we know that e-cigarettes contain a mixture of nicotine, flavourings, vegetable glycerin and/or propylene glycol. Whereas cigarettes contain up to 5,000 different toxins and chemicals, many of which are dangerous to the body, including combustible tobacco and other carcinogens.   

Nicotine derived from the tobacco plant is the addictive substance that keeps somebody smoking or vaping. Importantly, with an e-liquid compared to a cigarette, it’s much clearer what the nicotine level is per vape juice, and even more importantly, you can reduce that level yourself by selecting a reduced nicotine strength or even zero percent nicotine.  

How Much Nicotine in E-Liquids and How is This Measured?  

The mathematics is simple to work out how much nicotine is in a vape juice bottle. As stated previously, it’s illegal to sell a vape juice bottle containing nicotine of a quantity larger than 2ml. You can buy 50ml or 100ml shortfill bottles, where you can add a nicotine shot yourself, but the larger bottle does not contain nicotine.   

As a rule of thumb, nicotine with e-liquids is measured per millilitres. Therefore, with a maximum limit of 20mg nicotine strength, whether traditional freebase nicotine or using a nicotine salt formula, 20mg/ml vape juice equates to 40mg of nicotine in a 2ml bottle.   

Other strengths include 3mg, 6mg, 10mg, 12mg and 18mg per ml, so you always multiply by two to get the total nicotine concentrate per bottle.  

If a smoker puffs between 1-1.5mg of nicotine per stick, the maximum amount of nicotine that person will inhale is 30mg per pack.   

Complete levels of absorption research on nicotine from vaping are at early stages but highlight increased absorption compared to smoking. Rough estimates show that vaping a 2ml e-liquid at 20mg strength equates to smoking one or two packs of cigarettes.  

A Disposable Vape Comparison to Cigarettes 

With disposable vapes, they are often sold in 2ml capacity with 20mg nic salts (aimed at heavy smokers). But you can also find them in 10mg options, which is better for social smokers looking to quit.   

What you get is a higher concentration of nicotine with a 20mg disposable, and because it’s created with the nicotine salt process, that means quicker absorption into the bloodstream and smoother delivery.   

Because the equivalency of a 20mg nic salt is one to two packs of cigarettes, you get roughly the same level of nicotine in one compact device and nowhere near the dangerous chemicals and toxins in your system.  

In mathematical terms, if you puff on a cigarette between 10-15 times before discarding it, even at the maximum amount of 15 puffs for a disposable, with an average disposable vape allowing 600 puffs, that’s equal to two packs of cigarettes.  

With disposables from the likes of Elf Bar, Elux and Geek Bar, they’re considered convenient entry-level devices with sweeter e-liquid flavours that acts as a transitional device between smoking and vaping a more cost-effective pod kit or vape pen in the future.   

You’ll still get a like-for-like nicotine habit, with less of the dangerous toxins and sweeter flavours to match (with it more than likely your senses will begin to return after quitting smoking).   

For a cheaper price than a packet of cigarettes and a safer alternative for your health, it’s a win-win switching from smoking to vaping, with equal amounts of nicotine available for a fraction of the price.