While filters dont necessarily impact the number of puffs directly, they influence the overall smoking sensation, altering the smokes composition and texture
Since the announcement, the 31 states that still allow anyone 18 and older to buy tobacco and nicotine products have been scrambling to figure out how quickly they need to adjust their policies to match the federal rule
Current reports show those underage who make attempted purchases are successful around 10 percent of the time (as measured by tens of thousands of FDA compliance checks)
ACS Chemical Neuroscience
ASBESTOS SUBSTITUTE PERFORMANCE ANALYSIS: Revised Final Report
A later study, designed to capture those outcomes and submitted to the FDA in early June, found statistical significance in five of eight measures of clinical risk. Researchers noted that, in various forms, heated tobacco products have been touted as safer alternatives to cigarettes since the 1960s, and that tobacco firms have seen them as a means of circumventing a rising tide of regulation worldwide