High -efficiency air filters are mainly used to capture particle dust and various suspended substances below 0.3um. The fine glass fiber paper or PTFE material is used as the filter material, and it is made of hot melting glue, aluminum barrier or paper partitions and other materials. It has the characteristics of high filtration efficiency, small resistance, and large dust content. Precautions for the installation and maintenance of high -efficiency air filters: Before the installation of high -efficiency filters, the cleaning room must be cleaned and wiped. If there is dust in the inside of the purification system, it should be cleaned and wiped again to meet the cleaning requirements. If high -efficiency filters are installed in the technical expansion or ceiling, a comprehensive cleaning and cleaning should also be performed in the technical expansion or ceiling. High -efficiency filters are industrial consumables. In order to ensure the cleaning effect, the installation method and installation specifications of high -efficiency filters are generally replaced every other time. Now most of the purification areas are installed in the ceiling of the air outlet. Confirm that it is completely decided

Nowadays, people realize that the air conditioning system itself needs a good filter to protect. What impacts bring to the air conditioning system only with low efficiency filters? The airway is blocked, the fan fouling makes the air volume; the heat transfer component is reduced; the temperature and humidity and other measurement and control components failing dynamic end blowing device failure full heat exchange device failure pipeline internal temperature and humidity is a microbial breeding Ideal places in many central air conditioners, using two years later, the performance has declined significantly, open the air conditioner, and the crux is clear.

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.

1. The primary control parameter filtering efficiency, rated air volume, and the amount of dust, etc. under the rated air volume. 2. Press GB / T6165-1985 \"High-efficiency Air Filter Performance Test Method Transmission and Resistance\" specified by the method, the transmittance is ≤0.1% (i.e., efficiency ≥99.9%) or a particle size ≥0.1 μm particles The filter for counting transmittance ≤ 0.001% (ie efficiency ≥99.999%) is a high efficiency air filter. 3. High-efficiency air filters commonly filled with ultrafine glass fibers. 4. The air filter should comply with fire prevention requirements, and the high-efficiency air filter is divided into three levels by fire resistance: 1 grade filter, all materials of the filter are non-fuel, and the non-combustible materials should comply with GB8624-1997 A. Level 2 filter, filter filter should be a non-combustible material that meets GB8624-1997 A

In 1963, the United States had a clean room federal standard Fed STD 209. In 209 standards, the clean room is divided into several levels per cubic feet in the environment, such as level 100, 10,000, 100,000. China's past cleansing room standards are also graded in this way. In 1999, the International Standardization ISO issued the ISO14644-1 \"clean room and controlled clean environment, the first part: Air cleanliness.\" In 1999, the International Standardization ISO issued the ISO14644-1 \"clean room and controlled clean environment, the first part: Air cleanliness.\" The ISO specified in the cleanliness level and the specific numerical value of traditional grading are shown in the table below.