Certain nations in Asia, the Middle East, and other regions have tighter anti-vaping laws compared to others
They are also found in industrial solvents, petroleum fuels and dry cleaning agents
Dr Yakubu Bene-Alhasan, the studys lead author from MedStar Health in Baltimore, US, said: More and more studies are linking e-cigarettes to harmful effects and finding that it might not be as safe as previously thought
Next, smell the liquid to detect any unusual or off-putting odours, which can indicate spoilage
However, in some cases, phantosmia can be a sign of a serious underlying condition, so people should always discuss this symptom with their doctor
A significantly lower percentage of participants in Beijing, females, or participants with more annual household income, reported an intention to quit later compared to their counterparts