Electronic cigarettes are called many names. There are those who are calling this as electronic nicotine delivery system or ENDS, personal vaporizer or VP, ecig, electronic cigar and many more. This device is a battery powered vaporizer that gives the same feeling as smoking real tobaccos.
The fact that these don't contain traces of tobacco is the difference between ecigars and real tobaccos however, they use nicotine from some tobacco plants. These aren't generating cigarette smoke but actually, an aerosol which is inaccurately referred as vapour. To put it simply, they have this heating element that's atomizing the liquid solution called as the e-liquid from Sydney Vape Store. This e-liquid is normally a mixture of flavourings, nicotine, glycerine and propylene glycol. Others also have the same ingredients but without the presence of nicotine.
It is still uncertain the risks and the benefits of utilizing an electronic cigarette. Some data tend to be inconclusive while there are reviews that concluded that the use of smoking cessation can really help. Also, it is unclear if they are helping in reducing tobacco products and other health related concerns. They appear to be similar in the safety to other nicotine replacement products on the other hand, there is no sufficient info to draw out conclusion.
Limited evidences suggest that electronic cigarettes are safer compared to traditional cigarettes. Ecigars may carry a risk of addicting elements to some who are not smoking but there is no hard evidence of ongoing use among those who have never smoked. They may even promote delay of quitting to smoking or act as deterrent to quitting.
Tiny ultrafine particles of flavours, glycerol, aroma transporters, propylene glycol, tiny amounts of carcinogens, nicotine, heavy metals as well as other chemicals are some of the things that an ecigar may be emitting. The level of contaminants doesn't warrant health concerns according to the safety standards of the workplace according to the stated evidences. Moreover, the emissions of electronic cigar have less toxic components than real cigarette smoke. They're likely to become less hazardous to users and even bystanders. So far, there are no serious reported issues with regards to the utilization of electronic cigars.
Most of the e cigarette have cylindrical shape but there is a wide variety of shape that can be found in the market including pipe styles, box and the likes. The 1st generation of PVs were designed to simulate real tobacco smoking both in their appearance and usage. But as new models have been introduced, it has got increased nicotine dispersal performance, has more various form factors including boxes and metal tubes as well as higher capacity batteries.
So if you ever plan to buy one, I suggest that you review your options to make the right purchase.