Table 3.

Setting of boundary conditions.

Boundary	Setting
Nostril area(single)	0.636 cm2 (Gupta et al., 2010)
Respiratory rate	10/min
breathing capacity	5.98 L/min (Bjørn & Nielsen, 2002)
Particle diameter	0.3−1 μm (Morawska et al., 2009; Papineni & Rosenthal, 1997; Wan et al., 2014)
Particle density	1.2 × 103 kg/m3
Particle released number	50/s
Coefficient of thermal expansion of air	0.0036 (1/℃)
Particle release time	0−30 s