ADHS What vape products are still allowed under the new e cigarette policy? Debate Over Vape Flavors: Balancing Public Health and Harm Reduction 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 E cigs: More Dangerous Than We Thought Colorado Allergy & Asthma Centers, P.C. Is vape the new health crisis?