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. 2017 Jan 10;7:663. doi: 10.3389/fphys.2016.00663

Figure 1.

Figure 1

Equipment used in the puffing protocol include (A) Swinnex™ type filter holders and a Millipore Mixed Cellulose Ester (MCE) membrane, (B) Triple 3 eGo electronic cigarettes, and (C) peristaltic pumps in a Thermo Scientific Hamilton SafeAire II laminar flow hood.