Investigating Viral Inoculation and Recovery from Medical Masks

Table 3

Viral recovery from standard (“control”) type IIR mask vs. photosensitizer-treated antiviral (AV) type IIR mask at stated times, after inoculation with a viral suspension provided by the Teleflex MAD Nasal™ device.

Mask	Replicate	TCID50/mask	Average TCID50/mask	% reduction of antiviral mask	SD	Significance
Control,; T = 0	1	2.67 × 10^6	2.34 × 10^6	99.97	±4.74 × 10^5	p < 0.01
	2	2.00 × 10^6
Control,; T = 4 h	1	6.32 × 10^5	8.76 × 10^5	99.93	±3.45 × 10^5	p < 0.05
	2	1.12 × 10^6
Antiviral,; T = 4 h	1	≤6.32 × 10^2	≤6.32 × 10^2		0
	2	≤6.32 × 10^2