A Harm-Based Classification of PREPs

This report analyzes Potential Reduced-Exposure Products (PREPs), focusing on a product’s associated harms and benefits rather than its physical and chemical features. The paper includes (a) the definition of “PREPs” and the concept of harm-profiles, (b) a basic classification of PREPs and related products, (c) harm profiles for these product classes, (d) a harm-based classification of PREPs and (e) annotated literature and internet resources.


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