Table 4.

Estimated total expiratory droplet numbers produced during coughing and speaking using the measured size profile at 10 mm

Size class (μm)	Speaking			Coughing
	D	L&R	Z	D	L&R	Z
3	3	191		76	39	67
6	50	2972		1041	542	924
12	17	1018		386	201	343
20	9	534		127	66	113
28	6	353		47	25	42
36	3	181		45	24	40
45	3	191		38	20	34
62.5	3	201		38	20	34
87.5	2	141	N.A.	27	14	24
112.5	3	191		32	17	29
137.5	3	181		30	16	27
175	3	191		83	43	74
225	3	161		47	25	42
375	3	151		40	21	35
750	1	60		27	14	24
1500	0	0		0	0	0
Total	112	6720		2085	1085	1850

Key: D—refers to Duguid (1946); L&R—refers to Loudon and Roberts (1967); and Z—refers to Zhu et al. (2006).