Determining the appropriate negative pressure for minimum ventilation! — Illustration 1
Determining the appropriate negative pressure for minimum ventilation! — Illustration 2
Determining the appropriate negative pressure for minimum ventilation! — Illustration 3
Determining the appropriate negative pressure for minimum ventilation! — Illustration 4
Determining the appropriate negative pressure for minimum ventilation! — Illustration 5
Determining the appropriate negative pressure for minimum ventilation! — Illustration 6
Determining the appropriate negative pressure for minimum ventilation! — Illustration 7
Determining the appropriate negative pressure for minimum ventilation! — Illustration 8
Determining the appropriate negative pressure for minimum ventilation! — Illustration 9
Determining the appropriate negative pressure for minimum ventilation! — Illustration 10
Determining the appropriate negative pressure for minimum ventilation! — Illustration 11
Determining the appropriate negative pressure for minimum ventilation! — Illustration 12
 

　　5) In all small-window systems, the window opening must not be smaller than 2 centimeters. This is because it is almost impossible to achieve ideal air mixing and ventilation otherwise.