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HEPA filter replacement intervals, do you know?

Primary effect filter

The cleanroom has strict regulations on the humidity, temperature, fresh air volume, status, and illumination of the environment to ensure the production quality of the products and the comfort of the personnel working environment. The entire cleanroom system is equipped with a set of air purification systems using primary filters, medium filters, high-efficiency filters, three filters, control the number of dust particles in the clean area, as well as the number of settled bacteria and bacterial plankton number, as the end of the filtration devices, high-efficiency filters determines the operating effect of the entire purification system, so for the high-efficiency filters for the replacement of the time to grasp the very important.

I. We start from the high-efficiency air filters, in the clean room, whether installed in the purification air conditioning unit not end of the large air volume of high-efficiency air filters or installed in the high-efficiency air supply mouth of the high-efficiency air filters, these must have accurate records of the operating time and cleanliness and air volume as a basis for replacement, such as in the case of the use of the normal, high-efficiency filters, the service life of the filter can be up to one year or more, such as the front end of the protection of the high-efficiency filter can do a good job. If the front-end protection is done well, the service life of the high-efficiency filter can be up to two years or more without any problem, of course, depending on the quality of high-efficiency air filters, or even longer.

II. Installed the purification equipment in the high-efficiency air filter, such as the automatic air shower room in the high-efficiency filter, if the front-end primary filter protection does a good job of high-efficiency filter service life can be up to two years or more. High-efficiency filter on the purification bench, we can replace the high-efficiency filter through the purification bench on the differential pressure table prompts to replace the high-efficiency filter, clean the shed on the high-efficiency filter through the high-efficiency air filter detection airspeed to determine the time of air filter replacement, such as FFU fan filter unit on the replacement of high-efficiency air filters is through the PLC control system in the prompts or differential pressure table prompts to replace the high-efficiency air filters. High-efficiency air filters.

III. Some of our experienced air filter installers summed up the valuable experience, here to introduce to you, I hope to help you grasp the time to replace the air filter more accurately, in the air conditioning unit when the differential pressure table shows that the air filter resistance arrives at the initial resistance of 2 to 3 times, should be discontinued maintenance or replacement of air filters.