Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health, 2014 [3] U.S
"While a faster, deeper puff increases nicotine delivery from a conventional cigarette, it might diminish it from e-cigarettes due to cooling of the heating element," the WHO report explains
During this ritual, the healer blows smoke over the body to perform energetic cleansing (dissolving negative energies), create spiritual protection (forming an energetic shield around individuals and spaces), activate sacred objects and medicines, and call upon ancestral support
Or at least I found a picture from another forum that shows a few fuses at the top & front of the panel