Vaping aerosols contain thousands of unknown chemicals and substances not disclosed by manufacturers, including industrial chemicals and caffeine, Johns Hopkins University researchers found. : r/science

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Thousands of chemicals in ecig liquid and aerosol – Stanton Glantz blog

Nearly 2,000 unknown chemicals found in vape liquids and e-cig aerosols

New study finds uncharacterized molecules in vaping aerosols, posing new threats to users · The Badger Herald

Comparison of the chemical composition of aerosols from heated tobacco products, electronic cigarettes and tobacco cigarettes and their toxic impacts on the human bronchial epithelial BEAS-2B cells - ScienceDirect

Vaping aerosols contain thousands of unknown chemicals and substances not disclosed by manufacturers, including industrial chemicals and caffeine, Johns Hopkins University researchers found. : r/science

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Nearly 2,000 unknown chemicals found in vape liquids and e-cig aerosols

EHE Researchers Find Thousands of Unknown Chemicals in E-Cigarettes, Johns Hopkins