Filtering efficiency is the most important indicator of the air filter, which refers to the percentage of the ratio of the difference in air dust concentration before and after the filters in the rated air volume. For clean air conditioning systems, different levels of filters are usually used in series, and if there is a filter in series, its total efficiency: The penetration rate and filter efficiency filtering efficiency are parameters that measures the air filter to capture dust capability. It is also possible to evaluate the good and bad of the filter using penetration, and penetration rate refers to the percentage of dust concentration of air after filtration and the dust concentration of the dust filter, which can be used to indicate that the penetration rate can be clearly represented. The air before and after the filter is dusty, and it is more intuitive to evaluate the performance of the high-efficiency filter.

\"Air Clean \" can be understood from two associated aspects: First, the air is purified, indicating the air clean \"behavior \"; Second, the clean \"state \" in the clean air. The purpose of air cleansing is to make the contaminated air to the state of production, life, or reach a cleanliness. Air cleanliness refers to the degree of cleaning of the air. Cleaning degree is usually expressed in a certain volume or a certain amount of particle size, quantity or mass of the contaminated substance contained in the air. For example, in each cubic meter air, a suspension particle containing greater than or equal to 0.5 micrometers is X, that is, clean degree ≥ 0.5um, and the particles are XPC / m3. As another example, the mass of dust particles in each cubic meter is ymg, and its cleanliness is expressed in ymg / m3. Air purification is a means of contaminated air into clean air with some means, methods and equipment. Due to the purpose of air purification and the object, the content, method, and balance of purification

The application of clean technology has experienced the development of more than half a century, and its application range is increasingly wide and technical requirements are more complicated. Currently, its representative application is the microelectronics industry, medical and health and electronic industries. Its application areas: 01. Microelectronics industry 02. Semiconductor manufacturing 03. Pharmaceutical industry 04. Optical industry 05. Biotechnology Industry 06. Pure chemical reagent manufacturing 07. Micromechanical processing industry 08. Hospital and other health care institutions 09. Production and Packaging Industry of Medical Devices and Transplanting Devices 10. Food & Beverage Industry 1. Microelectronics Industrial Microelectronics Industry is currently the highest in the clean room. The development of large-scale and large-scale integrated circuits (LSI, VLSI) is increasingly high. In the integrated circuit manufacturing process, the larger the integration, the finer the graphic size (represented by the line width), the smaller the size of the cleansing chamber control particle size (

Air adjustment is a technique that enables parameters such as the temperature, relative humidity, clean degree, and airflow speed of the room or closed space. That is, in people's lives and work, the temperature, humidity, clean degree, and airflow velocity of the ambient air in a certain space of production and research constitute the air environment of the space. Take the necessary technical means to create and maintain the air environment required in this space is the task of air conditioning. In the air conditioning system, the air treatment device is an air conditioner is a core portion that realizes air heat, wet exchange, and air filter purification. A room or a space, in general, in addition to a serving structure from the interior of the room, people, lighting, particles, microbes, or other hazardous interference, and outside of the room Interference of atmosphere, solar radiation, etc. In order to eliminate the above-mentioned interference from indoor and outdoor,

With the rapid development of my country's purification industry, clean rooms in dust-free workshops have been widely used in high-tech industries such as microelectronics, optical and magnetic technology, biological engineering, electronic equipment, precision instruments, aerospace, food industry,