Both diacetyl and propylene glycol have been linked to Popcorn Lung, an irreversible disease that causes the smallest airways within the lungs (bronchioles) to become scarred, and reduces their capacity and efficiency
As a general rule, you may not want to carry electronics, medicines, or anything you need in your cabin bag during the flight
Other ingredients include heavy metals, chemicals that have been found in weed killers and are known pulmonary toxins, and ultrafine particles that can go very deep down into the lungs
For this reason, a water pipe is still the best choice, but unfortunately, it is fragile and not easy to transport
The budget proposal also includes more than $1 billion in cuts to state spending, as well as a plan to borrow $4.5 billion to spend on the COVID-19 recovery