Development and Characterisation of a Smoking Behaviour Measurement System

Abstract

SummaryRespiratory deposition from smoking articles is influenced by particle or droplet properties (such as diameter), puffing parameters (such as draw effort or pressure drop, flow rate, duration), mouth losses, and post-puff inhalation dynamics (determined by inhalation depth, volume and breath hold duration). The Smoking Behaviour System (SBS) described herein is a novel system with regard to its capability to measure flow and duration characteristics of typical smoking cycles, which may consist of puffing, mouth hold, post-puff inhalation, breath hold and exhalation. It combines two analysers: the first measures the puffing topography and optical obscuration from puffed aerosol, while the second measures the respiratory topography and optical obscuration from exhaled aerosol. The puffing and respiratory analysers were calibrated and operated between flow rates of 0-7 L.min