Q&A: How do e-cigarettes work?

Manufacturers to face tough new tests before they can sell devices that help smokers avoid the lethal effects of tobacco

For the first time e-cigarettes are to be regulated as medicines – meaning they will have to meet strict safety standards or be banned.

Q. How do they work?

A. E-cigarettes are battery-powered and contain liquid nicotine. As you inhale on the device, the nicotine is drawn into an atomizing chamber, where it is heated and turned into a vapour. The vapour is inhaled just like with a normal cigarette. A small electric light comes on at the end of the device on inhaling. The vapour does not smell. Nicotine cartridges must be replaced regularly. One e-cig cartridge contains equivalent nicotine to around 40 ordinary cigarettes.

Q. Benefits

A. Many smokers say that e-cigarettes help them to cut down on smoking, acting in much the same way as other nicotine-replacement products such as patches, gums and inhalers. Because they contain the addictive element of tobacco – nicotine – without the other harmful chemicals in tobacco, they are considered much less harmful than normal cigarettes.

Q. Risks

A. They are currently very lightly regulated and little is known about their long-term safety. The full range of ingredients found in various different brands is not known by health authorities. The MHRA found during tests that many products contained ingredients that were not adequately listed on the label. Nicotine by itself, though less harmful than cigarette smoke, is still extremely addictive and can damage blood vessels, making it a risky substance for people with heart conditions.

Q. How new regulation works

A. The new regulation effectively upgrades the status of e-cigarettes from consumer products to medicines. To be licensed they will now be required to meet “recognised standards of quality, safety and efficacy” in line with existing nicotine-replacement products. Accurate information on ingredients and safe use must be included on the label and manufacturers will be banned from advertising to children. However, the products will still be bought over the counter in shops and once licensed could also be available on prescription. An MHRA spokesman said an age limit of 18 could be imposed.

Voices
voicesGood for Lana Del Rey for helping kill that myth, writes Grace Dent
News
The University of California study monitored the reaction of 36 dogs
sciencePets' range of emotions revealed
Life and Style
fashion Designs are part of feminist art project by a British student
Arts and Entertainment
The nomination of 'The Wake' by Paul Kingsnorth has caused a stir
books
PROMOTED VIDEO
Have you tried new the Independent Digital Edition apps?
News
ebookA unique anthology of reporting and analysis of a crucial period of history
Arts and Entertainment
The Tour de France peloton rides over a bridge on the Grinton Moor, Yorkshire, earlier this month
film
News
Snoop Dogg pictured at The Hollywood Reporter Nominees' Night in February, 2013
people... says Snoop Dogg
News
i100
Life and Style
food + drinkZebra meat is exotic and lean - but does it taste good?
Arts and Entertainment
Residents of Derby Road in Southampton oppose filming of Channel 4 documentary Immigration Street in their community
tv
Voices
voicesSiobhan Norton on why she eventually changed her mind
News
i100
Extras
indybest
Sport
Scottish singer Susan Boyle will perform at the Commonwealth Games opening ceremony in Glasgow
commonwealth games
Arts and Entertainment
Dwayne 'The Rock' Johnson stars in Hercules
filmReview: The Rock is a muscular Davy Crockett in this preposterous film, says Geoffrey Macnab
Life and Style
tech
Independent
Travel Shop
the manor
Up to 70% off luxury travel
on city breaks Find out more
santorini
Up to 70% off luxury travel
on chic beach resorts Find out more
sardina foodie
Up to 70% off luxury travel
on country retreats Find out more
Latest stories from i100
Have you tried new the Independent Digital Edition apps?
Independent Dating
and  

By clicking 'Search' you
are agreeing to our
Terms of Use.

iJobs Job Widget
iJobs General

BI Manager - £50,000

£49000 - £55000 per annum + competitive: Progressive Recruitment: My client is...

BI Project Manager - £48,000 - £54,000 - Midlands

£48000 - £54000 per annum + Benefits package: Progressive Recruitment: My clie...

VB.Net Developer

£35000 - £45000 per annum + competitive: Progressive Recruitment: If you're pa...

SAP Business Consultant (SD, MM and FICO), £55,000, Wakefield

£45000 - £55000 per annum + competitive: Progressive Recruitment: SAP Business...

Day In a Page

Screwing your way to the top? Good for Lana Del Rey for helping kill that myth

Screwing your way to the top?

Good for Lana Del Rey for helping kill that myth, says Grace Dent
Climate change threatens to make the antarctic fur seal extinct

Take a good look while you can

How climate change could wipe out this seal
Man Booker Prize 2014 longlist: Crowdfunded novel nominated for first time

Crowdfunded novel nominated for Booker Prize

Paul Kingsnorth's 'The Wake' is in contention for the prestigious award
Tour de France effect brings Hollywood blockbusters to Yorkshire

Tour de France effect brings Hollywood blockbusters to Yorkshire

A $25m thriller starring Sam Worthington to be made in God's Own Country
Noel Fielding's 'Luxury Comedy': A land of the outright bizarre

Noel Fielding's 'Luxury Comedy'

A land of the outright bizarre
What are the worst 'Word Crimes'?

What are the worst 'Word Crimes'?

‘Weird Al’ Yankovic's latest video is an ode to good grammar. But what do The Independent’s experts think he’s missed out?
Can Secret Cinema sell 80,000 'Back to the Future' tickets?

The worst kept secret in cinema

A cult movie event aims to immerse audiences of 80,000 in ‘Back to the Future’. But has it lost its magic?
Facebook: The new hatched, matched and dispatched

The new hatched, matched and dispatched

Family events used to be marked in the personal columns. But now Facebook has usurped the ‘Births, Deaths and Marriages’ announcements
Why do we have blood types?

Are you my type?

All of us have one but probably never wondered why. Yet even now, a century after blood types were discovered, it’s a matter of debate what they’re for
Honesty box hotels: You decide how much you pay

Honesty box hotels

Five hotels in Paris now allow guests to pay only what they think their stay was worth. It seems fraught with financial risk, but the honesty policy has its benefit
Commonwealth Games 2014: Why weight of pressure rests easy on Michael Jamieson’s shoulders

Michael Jamieson: Why weight of pressure rests easy on his shoulders

The Scottish swimmer is ready for ‘the biggest race of my life’ at the Commonwealth Games
Some are reformed drug addicts. Some are single mums. All are on benefits. But now these so-called 'scroungers’ are fighting back

The 'scroungers’ fight back

The welfare claimants battling to alter stereotypes
Amazing video shows Nasa 'flame extinguishment experiment' in action

Fireballs in space

Amazing video shows Nasa's 'flame extinguishment experiment' in action
A Bible for billionaires

A Bible for billionaires

Find out why America's richest men are reading John Brookes
Paranoid parenting is on the rise - and our children are suffering because of it

Paranoid parenting is on the rise

And our children are suffering because of it