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Table 1 Parameters of positive isolators and barrier environment

From: Establishment of a special pathogen free Chinese Wuzhishan Minipigs Colony

Items Units Parameters of detection
Positive isolators Barrier environment
Temperatures °C 23.5-23.8 19.4-20.1
Absolute humidity % 64.2-66.8 67.0-68.8
Air exchange times/h 32-41 10
Air velocity m/s 0.14-0.18 0.14-0.15
Air pressure Pa 100-149 10-20
Air cleanliness (≥0.5 μm) pc/m3 0-1295 -
Number of dropped bacterial (Static state) per plate None 0-3
Intensity of illumination lx 179-250 214-232