Figure 5

Assessment of cigarette smoke particle mass penetration through the RM20S system, using three different tubing types. An electrical mobility spectrometer sampled smoke at the exit of the syringe (α), before the chamber (β) and at the exit from the chamber (γ). Results expressed as percentage of average mainstream smoke (100% = 5.75 ± 0.31 mg) n = 3. Statistically significant differences were observed between the three sampling points (α, β, γ) for all tubing types tested, p = < 0.05, but no significant differences were observed between the three tubing types at each individual sampling point, p = 0.083.