Table 4:

Correlations between different performance metrics for the cloth face masks, gaiters and bandanas. 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	18	0.6487	42%	0.0018
	Manikin fit before coughing	18	0.3140	10%	0.1022
	Filtration efficiency of material	18	0.4637	21%	0.0263
	Airflow resistance of material	18	0.4802	23%	0.0219
	Human subject fit (N95 mode)	18	0.4133	17%	0.0441
	Human subject fit (all particle sizes)	18	0.5352	29%	0.0110
Exhaled aerosol collection efficiency	Manikin fit before breathing	18	0.6596	44%	0.0014
	Filtration efficiency of material	18	0.4352	19%	0.0355
	Airflow resistance of material	18	0.5697	32%	0.0068
	Human subject fit (N95 mode)	18	0.5390	29%	0.0105
	Human subject fit (all particle sizes)	18	0.6233	39%	0.0029
Manikin fit before coughing	Manikin fit before breathing	18	0.3587	13%	0.0719
Filtration efficiency of material	Airflow resistance of material	18	0.7185	52%	0.0004