1. Interception effect: When a particle size particle movement to near the fiber surface, the center line to the fiber surface distance less than the particle radius, the dust particles will be intercepted by the filter fiber and deposited.
2. Inertial effect: when the particle size is larger or faster, it collides with the fiber surface and deposits due to inertia.
3. Diffusion effect: Small particle size Brownian motion is strong and easily collide with the fiber surface.
Gravity effect: particles through the fiber layer, due to gravity deposition and deposited on the fiber.
5. Electrostatic Effect: Fibers or particles may be charged, resulting in the electrostatic effect of attracting particles, and the particles to the fiber surface.
As more and more dust is trapped, the filtering efficiency of the filter layer also decreases and the resistance increases. When a certain resistance value or efficiency drops to a certain value, the filter needs to be replaced in time to ensure Purification cleanliness requirements. The application of high efficiency filters mainly in the electronics, semiconductors, precision machinery, pharmaceuticals, hospitals, food and other industries demanding cleanliness of the pharmaceutical, civil or industrial clean end of the filter. Since high efficiency filters are generally used as filter ends, the most stringent requirements for high efficiency filters are also required, of course, requiring extra "care".