Table 3. Adequate protection rate, fit factor, and leakage rate between domestic and 3M-made N95 respirators.

Tested value		Manufacturing country		P value	OR
		Made in Korea (n = 90)	Made by 3M (n = 60)
Fit factor					14.6
	Pass, % (No.)	25.6 (23)	83.3 (50)	< 0.001
	Fit factor, Median (IQR)	38.5 (9.0–104.5)	200.0 (152.0–200.0)	< 0.001
Leakage rate, %					10.3
	Pass, % (No.)	21.1 (19)	73.3 (44)	< 0.001
	Leakage rate, Median (IQR)	8.9 (5.3–17.5)	2.9 (1.1–5.1)	< 0.001

OR = odds ratio, IQR = interquartile range.