Primary filter

The primary effect filter is an important equipment used in the air purification system, and its main function is to filter particles and dust in the air. The primary filter is usually installed at the air intake of the air conditioning system or ventilation system to block large particles of dust and pollutants to protect the subsequent high efficiency filter and air treatment equipment from particulate damage.

The filtration efficiency of the primary filter is usually between 20% and 40%, mainly filtering particles with a diameter greater than 5 microns, such as soot, pollen, dust, etc. The filter materials of the primary effect filter are mostly cellulose paper, synthetic fiber or aluminum alloy mesh, etc. These materials can effectively trap particles, but the filtration effect of gases and small particles is poor. Therefore, the primary filter is usually used for pre-filtration to extend the service life of the high efficiency filter.

The cleaning and replacement of the primary filter is very important, and regular cleaning can ensure filtration efficiency and ventilation effect. The method of cleaning the filter is usually to rinse with a vacuum cleaner or water, but it is not recommended to use chemical cleaners, so as not to affect the filtration effect. If the primary filter has accumulated more ash or has been damaged, it should be replaced in time to ensure the normal operation of the air purification system.

The selection of the initial effect filter should be determined according to the size and concentration of particles in different environments, in general, the environment of high concentration of particles and large particles needs to choose the initial effect filter with higher filtration efficiency, while the environment of low concentration particles and small particles can choose the initial effect filter with moderate filtration efficiency. In addition, the size and thickness of the primary filter also need to be determined according to the requirements of the specific air conditioning system or ventilation system.

The primary effect filter plays a very important role in the air purification system, which can effectively purify the air, improve indoor air quality, and protect people's health. Therefore, when selecting and using the initial effect filter, it is necessary to carry out scientific purchase and maintenance according to the actual situation to ensure its normal operation and good filtration effect.