Dell Vostro A100 Setup And Quick Reference Manual page 30

Specifications
Environmental (Continued)
Altitude:
Operating
Storage
Airborne contaminant level
30
–15.2 to 3048 m (–50 to 10,000 ft)
–15.2 to 10,668 m (–50 to 35,000 ft)
G2 or lower as defined by ISA-S71.04-1985