Analysis of the causes of damage to high-efficiency filters during use

If the air inlet surface passes through the high-efficiency filter, the air inlet surface will be larger than the outlet air. If the surface is dirty, it can be determined that the installation direction of this high-efficiency filter is opposite to the actual one( There is a weathervane on the border）, the original air inlet surface becomes the air outlet surface, which will cause the resistance to increase by about 10% compared with the normal installation method, affecting the use life.

Solution: Turn the direction around, and the filter manufacturer should also turn the sealing strip around.

If you find with the naked eye that the high-efficiency filter is much dirtier than the filter during normal replacement, that is, it is very black, according to the user, just replace it and use it4-5 Months later, it was determined that there was a problem with the configuration of the front-end primary and medium-efficiency filters of this high-efficiency filter, causing too many large particles of dust to block the high-efficiency filter.

Solution: Improve the filtration level of the medium-efficiency filter, generally set it to F8, and replace the primary-efficiency filter regularly（Replace in 1-3 months ), medium efficiency filter（Replacement in 3-6 months).

The final resistance of the high-efficiency filter has reached the critical point of elimination. Generally, when the final resistance reaches twice the initial resistance, it needs to be replaced. The air inlet surface of this filter has been severely blocked. According to experience, the final resistance of this filter can be confirmed It has exceeded the initial filtering resistance2 times.

Solution: To increase the dust holding capacity of the large high-efficiency filter and reduce its initial resistance, that is to increase the number of partitions of this high-efficiency filter. The original number is 4 partitions and 8 sides. When the number is increased to 5 intervals and 10 sides, the cost will also increase, and the service life can be extended by about 20% compared to the original.