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. 2021 Oct 28:10.1111/risa.13844. Online ahead of print. doi: 10.1111/risa.13844

Table III.

Input Parameters for Skagit Valley Choir Outbreak

Skagit Valley Outbreak
Occupants (#) 61 Outdoor Air Supply (m3/H)

0.7,2.6 (ASHRAE)

Time of event (Hour) 2.5 Filtration CADR (m3/H) 0
Volume (m3) 810 Fractional time speak 0.5
Speak multiplier 1.5 Coughs H‐1 8
High emitter 1&4 Low Emitter 0&7