What is air curtain?
The air curtain is a powerful airflow generated by a high-speed motor driving through the flow or centrifugal wind wheel to form an "invisible door curtain".MORE
What is the fresh air system?
1. What is the fresh air system? Divided into several categories? In order to pursue a healthy and quiet quality of life, a simple and practical system was introduced in Europe in 70 years ago. 90% of the buildings in their buildings have been installed. Currently, the system has been widely used. Application, this is the central fresh air system.MORE