China is a major producer of evaporative (swamp) coolers, offering a vast range from small household units to large industrial models for factories, farms, and outdoor spaces, known for competitive pricing and features like big airflow, water tanks, and UV sterilization, though they work best in dry climates and add humidity. You can find them on global trade sites like Alibaba and Made-in-China.com from manufacturers like Abeite New Material Co., Ltd., WINMORE Cool-Heat, and Aolan, focusing on energy efficiency and modern designs.