They contain other toxins The American Lung Association list a number of toxins, beyond nicotine, that appear in e-cigarettes
You can also place a damp towel against the bottom crack of your door to stop the smell spilling out
One underlying factor is longstanding disparities in health problems that affect the heart and blood vessels, such as diabetes, high blood pressure, and obesity
Additionally, both regular and premium brands follow this convention
But if you dig a little deeper, cigarette pack sizes are more varied than you might expect, and the answer actually changes depending on the country, the brand, and the type of pack you buy