Dell OptiPlex 9020 AIO Owner's Manual page 61

Feature
Relative humidity (maximum):
Operating
Storage
Maximum vibration:
Operating
Storage
Maximum shock:
Operating
Storage
Altitude:
Operating
Storage
Airborne contaminant level
Specification
10% to 90% (non-condensing)
10% to 95% (non-condensing)
0.66 GRMS
1.30 GRMS
110 G
160 G
–15.2 m to 3048 m (–50 to 10,000 ft)
–15.20 m to 10,668 m (–50 ft to 35,000 ft)
G2 or lower as defined by ANSI/ISA-S71.04-1985
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