People
Expected

Length of Event in Hours
1 hr 2 hrs 3 hrs 4 hrs 5 hrs 6 hrs 7 hrs 8 hrs 9 hrs 10 hrs
0 - 50 1 1 1 1 2 2 2 2 2 2
51 - 100 2 2 2 2 2 3 3 3 3 3
101 - 250 3 3 3 3 4 4 4 6 6 6
251 - 500 4 4 4 6 6 6 8 8 8 8
1000 4 6 6 6 6 8 8 8 8 12
2000 4 8 8 8 8 12 12 12 12 16
3000 8 8 10 10 10 12 16 16 16 16
4000 8 8 12 12 16 16 20 24 24 28
5000 12 12 12 16 20 30 30 30 30 34
6000 12 12 16 16 20 30 30 36 36 40
7000 12 12 16 20 30 32 40 40 52 52
8000 12 12 20 24 32 32 40 44 52 54
9000 16 16 24 28 40 40 52 52 60 64
10000 16 16 28 40 40 52 52 60 60 72
These quantities are based on a safe recommended amount, without service during event.
If service is provided at the event, fewer units may be used.