Big indoor spaces have a problem. Warehouses, factories, sports halls, and even big stores get hot, stuffy, and hard to breathe in. Air stands still. Heat builds up. This makes workers tired and slows them down. Machines overheat. Food spoils. Even in winter, warm air gets trapped at the top, while the floor stays cold.
Simple fans don’t help. Why? They’re too small or weak. Air doesn’t reach where it’s needed. Energy bills go up as air conditioning works overtime, but the air still doesn’t move much.
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