At present, many companies have installed ventilation and cooling systems in factories. This is a concern for the working environment and personal safety of company employees, and it is also something companies must do. It is extremely necessary to install ventilation and cooling facilities in factories and workshops.

For many enterprises, ventilation and cooling have become another difficult problem that must be solved. These devices can improve environmental quality and enhance space humidity. For example, in textile factories, if the relative humidity is too low, it will affect the production of the process, causing the yarn to break easily and hairiness. If the humidity increases, the electrostatic effect will be enhanced, and the fibers will be fragile and poorly formed, easily causing defects; another example is a shoe factory, where the population density in the workshop is relatively concentrated. If a certain humidity space is not reached, it is easy to cause wrinkles and shedding of the shoe uppers, as well as odor and pollution in the workshop. It is also difficult to rule out that these are all negative factors that affect workers’ enthusiasm for going to work.

Some media reported that on July 3 last year, Liu Yuanfang, a female textile worker in Mawei District, Fuzhou, suddenly collapsed in a very hot workshop and died of heat stroke, the most serious form of heat stroke; on July 15, another female worker in Nanjing City who was under 18 years old , died shortly after suddenly fainting in a handicraft bottle inspection workshop. At that time, the temperature in the workshop was as high as more than 40 degrees Celsius. The death of employees due to poor environment is a painful price and must serve as a warning to our companies. In fact, this is only one of the cases, and we don’t know how many more cases there are. During this year's Two Sessions, an important theme was to pay attention to the personal problems of migrant workers in cities, a large part of which is to create a good production and living environment for employees and ensure their most basic living space. Create coolness - achieve efficiency.