Chapter 13 
j Figure 4 
I Effect of puff frequency on observed tar yields 
35 
30 
25 
20 
15 
10 
5 
0 
Puff frequencies studied 
(one puff taken every “x” seconds): 
11 60 seconds 
□ 45 seconds 
□ 30 seconds 
Lowest Tar Ultralight Full Flavor Light Full Flavor 
Brand Style 
Note: The puff volume for this experiment was 45 cc; the puff duration was 1. 7 seconds. 
Figure 5 
Effect of puff duration on observed tar yields 
177 
