Table 3.

The fate of injected particles. This table summarizes the percentage of particles (in different diameters) suspended in the air and those removed by two major mechanisms, i.e., by ventilation through the exhaust outlet(s) and by deposition on different surfaces. (The three ventilation strategies have an identical air change rate of 12.3 h⁻¹.)

Ventilation strategy	Particle diameters (μm)	Manikins skin (%)	All beds (%)	Floor (%)	Ceiling and walls (%)	Exhaust (%)	Suspended in air (%)
I	3	0.2	0.3	3.4	2.3	88.7	5.1
	6	0.2	0.3	3.6	2.1	88.7	5.1
	12	0.2	0.3	4.2	1.9	88.5	4.9
	20	0.3	0.5	7.4	1.4	86.1	4.3
	45	7.5	13.4	70.6	0.2	7	1.3
	175	45.5	43.8	10.6	0	0	0.1
II	3	0.3	0.3	4.2	2.4	85.4	7.4
	6	0.3	0.3	4.7	2.1	85.3	7.3
	12	0.3	0.4	5.1	2	85	7.2
	20	0.4	0.5	7.9	1.6	83.4	6.2
	45	7.9	18.8	71.6	0.3	0	1.4
	175	43.2	46.9	9.8	0	0	0.1
III	3	0.4	0.4	3.1	2.5	67.3	26.3
	6	0.4	0.5	3.4	2.3	67.3	26.1
	12	0.5	0.6	4.4	2.1	67.1	25.3
	20	0.6	0.7	14.3	1.7	64.3	18.4
	45	3.1	16.3	60.6	0.3	18.1	1.6
	175	41	53.6	5.3	0	0	0.1