2.2.1. Toilet-flushing scenario
The deposition efficiency of aerosols in the human body during toilet flushing Omecamtiv mecarbil considered based on breathing pattern as indicated by U.S. EPA, which is represented by the inhalation rate for individuals engaging in light activities (U.S. EPA, 2011). These deposition efficiencies were derived empirically by Heyder et al. (1986) as a function of particle size and breathing patterns. A breathing rate of 15 L of air/min, an 8-second breathing cycle period (4 s each for inspiration and expiration), and 1 L of tidal volume were applied.