Time hrs/day Relative Infection Risk IRS % of total IRS IRS reduction (using face coverings) IRS reduction (using face coverings) IRS reduction (using face coverings) IRS reduction (using face coverings)
Location 20% risk reduction 40% risk reduction 60% risk reduction 80% risk reduction
Home (including sleep) 16.69 1 16.69 28.3% 16.7 16.7 16.7 16.7
Work/study 5.61 6 33.66 57.1% 33.6 33.6 33.6 33.6
Public Transport 0.47 5 2.35 4.0% 1.9 1.4 0.9 0.5
Retail 0.39 5 1.97 3.3% 1.6 1.2 0.8 0.4
Leisure Inside 0.44 7 3.05 5.2% 3.0 3.0 3.0 3.0
Leisure Outside 0.41 3 1.22 2.1% 1.2 1.2 1.2 1.2
Total Infection Risk Score 58.96 58.0 57.2 56.3 55.5
Percentage overall risk reduction -1.5% -2.9% -4.4% -5.8%