Table 2 Required energy dosages for inactivation and calculated exposure time values for seven common pathogens15,16,17,24.

From: Development of a novel self-sanitizing mask prototype to combat the spread of infectious disease and reduce unnecessary waste

Pathogen (% inactivation)

Required energy dosage (mJ/cm2)

Exposure time (s)

SARS-CoV-2 (99)

5.0

182.87

HCoV-229E (99.9)

1.7

71.14

HCoV-OC43 (99.9)

1.2

50.22

Mycobacterium tuberculosis (99.9)

3.3

113.54

H1N1 influenza (99.9)

3.8

130.75

Escherichia coli (99.9)

2.4

82.58

Streptococcus pyogenes (99.9)

1.2

41.29