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Competing interests Neither author has any financial or other personal relationship with regard to the funding sources or any other stakeholders

The relationship between nicotine content and perceived mildness is direct

Smoking carries significant health risks, and travelers interested in quitting should consult medical resources such as the CDC or WHO, especially given how prevalent tobacco use remains even among those flying on luxury celebrity private jets

Rechargeable e-cigarettes have useful features, such as more power output, more choice of flavors to use in the device, and more life (in terms of battery) before needing to be recharged