According to the Centers for Disease Control and Prevention (CDC), cigarette smoking is responsible for more than 480,000 deaths annually in the United States, including more than 41,000 deaths resulting from secondhand smoke exposure
The IARC monographs, referencing studies which used various methods of smoke inhalation, concluded that a significantly greater number of pulmonary tumors occurred among mice exposed to smoke than those in the control groups
They come pre-filled and pre-charged, so you dont need to clean or refill them
In the last hundred years nicotine reached peak popularity, as tobacco use was glamorised through cigarettes, and then equally swiftly fell from favour, as their addictive nature and danger to health became apparent
If youre looking for the most up-to-date information about infection prevention and control practices, you can find it on CDCs COVID-19 page