E Cigarette Sales Soared During Pandemic Years The New York Times Walmart to stop selling all e cigarettes at U.S. stores, citing 'regulatory complexity and uncertainty' The Washington Post E cigarette newsAuthorities say e cigarette risks justify ban on vaping 'lifestyle' Vaping has soared in popularity over the last decade, growing from about 7 million users in 2011 to 41 million in 2018. E cigarettes Stress Lungs, Impair Protein Function News Release PNNL