Table 3:

Correlations between different performance metrics for all source control devices. R indicates the correlation coefficient while r² is the coefficient of determination.

Correlation parameter #1	Correlation parameter #2	# points	r	r2	p-value
Cough aerosol collection efficiency	Exhaled aerosol collection efficiency	22	0.8453	71%	<0.0001
	Manikin fit before coughing	22	0.5911	35%	0.0019
	Filtration efficiency of material	22	0.7428	55%	<0.0001
	Airflow resistance of material	22	0.4280	18%	0.0235
	Human subject fit (N95 mode)	22	0.7120	51%	0.0001
	Human subject fit (all particle sizes)	22	0.8054	65%	<0.0001
Exhaled aerosol collection efficiency	Manikin fit before breathing	22	0.8863	79%	<0.0001
	Filtration efficiency of material	22	0.7199	52%	0.0001
	Airflow resistance of material	22	0.4140	17%	0.0277
	Human subject fit (N95 mode)	22	0.7528	57%	<0.0001
	Human subject fit (all particle sizes)	22	0.8585	74%	<0.0001
Manikin fit before coughing	Manikin fit before breathing	22	0.6389	41%	0.0007
Filtration efficiency of material	Airflow resistance of material	22	0.6350	40%	0.0007