First, we talk about from the high-performance air filter, clean room, whether it is installed in the clean air conditioning unit is not the end of the large amount of high efficiency air filter installed in the high efficiency of the air outlet or high efficiency air filter, which must have Accuracy of the run-time recording and cleanliness and air volume as a replacement basis, such as in the normal use of the situation, the efficient filter life can be up to more than a year, such as the front-end protection to do a good high efficiency filter life can be long Up to two years or more there is no problem, of course, it also depends on the quality of high-quality air filter may be better or worse, perhaps longer;
Second, as installed in the purification equipment in the high efficiency air filters, such as automatic air shower in the high efficiency filters, such as the front end of the early effect of filter protection to do a good high efficiency filter life can be as long as two years; Such as clean workbench on the efficiency of the filter, we can clean table by the pressure on the table prompts to replace the high efficiency filter, clean shed on the efficient filter can be detected by high-speed air filter to determine the air filter The replacement of the best time, in the case of FFU fan filter unit unit on the replacement of high-performance air filter is prompted by the PLC control system or the pressure table prompts to replace the high efficiency air filter.
Third, some of our experienced air filter installation staff summed up the valuable experience, here to tell you about, hope to help you grasp the best time to replace the air filter is more accurate, when the pressure in the air conditioning unit Differential table shows that the air filter resistance to reach the initial resistance of 2 to 3 times, should stop the maintenance or change the air filter.
In the absence of pressure table conditions, can be based on the following simple two-body pattern to determine whether the demand for change:
1) Look at the air filter on the downstream side of the color filter, such as the color of the air out of the beginning of the filter color is ready to change;
2) touch the air filter air filter surface, such as the hands have more dust will be ready to change;
3) record the change of the air-air filter several times and summarize the best change-over period;
4) In the high-performance air filter did not reach the final resistance under the premise of a clean room and the pressure difference between the adjacent room decreased, there may be too much resistance to junior high efficiency filter to prepare for change;
5) clean room cleanliness is less than the design request, or negative pressure, in the middle of the efficiency of the air filter did not arrive when the change, there may be too much high-efficiency air filter resistance, to prepare for change.