New research has found that lung infections are drastically driven down after smokers make the switch to e-cigs, obliterating previously nonsensical arguments that they’re just as harmful. 66.6% of smokers who have kicked their habits thanks to e-cigs have stated that they have fewer respiratory infections. This has led to various authors claiming that there is unequivocal evidence that it is impossible for vapour to clog up the lungs in the way cigarette smoke does. Queen Mary University of London surveyed 941 ex-smokers who had switched to vaping in order to assess their subjective change in respiratory symptoms over the last few months. The results were published in the Journal Addiction Research & Therapy and showed that two thirds of respondents’ respiratory symptoms had improved. 29% reported no change and 5% said their situation had worsened. “There is no doubt that e-cigarettes are much safer than conventional cigarettes, but smokers are still led to believe that they're dangerous,” said Senior author Professor Peter Hajek from QMUL. “This misinformation includes a misreported study on rats that claimed that vaping may increase vulnerability to infections. These new findings from human vapers show that this is not the case.” “The study needs to be interpreted with caution because it is based on self-reported data, and further studies using objective measures are needed.” “However, the present results provide sufficient information to suggest that vaping does not increase infection rates and may in fact lead to a decrease in infections.” It has transpired that previous research that found that vaping may increase vulnerability to infection were not conducted properly, using unrealistic exposure levels. Those who have used e-cigs for at least one-and-a-half-years have found that there have been no ill respiratory effects and asthmatics have found that their condition had significant improvements. Experts say smoking increases susceptibility to respiratory infections, and thus, quitting has a positive effect. It has been theorised that vaping offers antimicrobial protection from propylene glycol, an ingredient found in e-liquid. It has previously been reported that there is minimal e-cig use among non-smokers, quashing some fears that e-cigarettes were attracting those who had never smoked before. It is widely known that e-cigs are the most successful method of quitting, and don’t trigger heart cells into a stress response, unlike cigarettes.