Fig. 5From: Endotracheal tubes and fluid aspiration: an in vitro evaluation of new cuff technologiesEffect of tracheal size (1.6, 1.8, 2.0, 2.2 and 2.4Â cm) on aspiration (volume of fluid) past the cuff per hour. The PneuX ETT was the only tube that prevented the aspiration of fluid at each tracheal size. Variability of the results was evident for each HVLP ETTBack to article page