Case note: Client name withheld for internal review. Public reference only. If brand names such as Li-Ning, BYD, Porsche parts center, or similar are to be used in final published copy, authorization review is required first.

What problem did the warehouse have?

• 12,000 m² steel structure, 9 m clear height
• Main inventory: apparel, packaged goods, light electronics
• Recurring November complaints: water beads on roof panels, damp carton bottoms near exterior walls, clammy forklift paths, mold risk flagged by QA
• Existing equipment: exhaust fans plus 60 small floor fans
• Result: air still stagnated at ceiling level

How was airflow diagnosed?

• Roof zone 4–6°C warmer than floor during daytime
• Roof surface dropped below dew point at night
• Humidity pooled at racking top level
• Small fans created local wind but no full-room loop

What system was installed?

• 8 × W.Fans units (7.3–8.5 m diameter)
• Group control by zone: Zone A receiving (2 fans), Zone B storage (4 fans), Zone C picking (2 fans)
• Low-speed winter mode with humidity sensor linkage
• Existing exhaust system retained for fresh-air exchange

What changed after 6 weeks?

• Roof condensation reduced during morning cold hours
• Less damp feeling along perimeter racking
• Air temperature difference between floor and roof lowered
• Fewer small fans needed on the floor
• Noise level remained comfortable for voice communication

FAQ