Flavored vape restrictions won't go into effect as scheduled Here's why Chemicals in vapes could be highly toxic when heated, research finds AI analysis of 180 vape flavors finds that products contain 127 'acutely toxic' chemicals, 153 'health hazards' and 225 'irritants' : r science Approximately 16,000 unique flavours have been identified for vapes, many of which appeal to potential users. Some flavours increase the toxicity of vape emissions and can generate compounds that are known to Why Flavored E Cigarettes are Bad for You Roswell Park Comprehensive Cancer Center Buffalo, NY