China evaporative air cooler prices vary widely, from very cheap portable units around $20-$40 for basic models to industrial or large capacity units costing several hundred to over a thousand dollars, depending on features, power, tank size (e.g., 12L vs 90L), and if it's for home or commercial use, with bulk orders getting better rates. Expect smaller personal coolers to start under $30, while larger, more powerful industrial models might be $150-$200+, and specialized units $500+.