If you can not see the panorama view, please click to install microsoft JVM. Shenzhen Youbong Environment Protection Technology Co., Ltd. is a high-tech manufacturer engaged in the design and production of evaporative air coolers. We are a subsidiary of Hong Kong Yaubong Group. Our company develops a series of high quality, energy saving and environmentally friendly YDM branded evaporative air coolers with advanced technology. Having passed the CQC and ISO9001 quality certifications, we can guarantee excellent quality products. Produced using advanced technology, our products have high cooling efficiency, large airflow, and low noise. We have a strong scientific research program that has introduced YDM series differential airflow style evaporative air coolers into the market and developed top outlet and down outlet models. Our company has been awarded two national patents, high strength composite pad and revolving pad mandrel. We also supply the services for the ventilation engineer project design to make the YDM evaporative air cooler working with highest efficiency. We are sure that our high quality products and excellent services will attract more and more customers. If you are interested in our products, please do not hesitate to contact us.