Efficient filter life

   For the operation of the clean room, the end of high efficiency filter value is not high, may all add up to less than a few hours of user value, but the end of the high efficiency filter replacement risks and indirect costs will be high. When replacing the filter to stop production, stop losses can be calculated only the owners themselves, this loss certainly higher than the cost of spare parts filters. Replacement of high efficiency filter is very careful operation, whatever the value of the clean room may expensive, destroying a part of its losses higher than all filters might cost. After replacing the filter to be used by professionals to detect, and sometimes on the air conditioning system for debugging, but also through a trial run for a period of time. Testing, commissioning, trial run, the cost of three added together, may be comparable with the price of the filter. Smart owners always want as much as possible to extend the effective life of the filter, the filter is not in order to save some money, they want to avoid the hassle of a pile of filter replacement generated.
To extend the effective life of the filter, the most fundamental way is to stand in the dust pre-filter. Replace the pre-filter is generally no need to stop production, no debugging, so experienced owners will attention and money spent on the pre-filter and filter protection intermediate level. For the 10K and 100K clean room level, pre-filter selection G4, intermediate choice F8 filter (assay 95%), so that the end of the high efficiency filter life is generally up to 5 years. In the domestic and foreign projects in the new project, F8 filter is non-uniform flow clean room of the most common pre-filter.
  Some occasions, for efficient filter life is not out of consideration for the provisions of the resistance, but other factors. If the plant in hydrofluoric acid, and air conditioning plant air system are not new, high efficiency filter in the glass fiber filter will be back to the wind erosion, for safety, high efficiency filter must be replaced periodically. Some large pharmaceutical factory, every year after the rainy season to replace the high efficiency filter, in order to prevent any possible contamination of mold on the filter. Some laboratory and biological laboratories dealing with dangerous goods, before conducting a new and important topic, in order to reliably will require the use of new high efficiency filter.
Early efficiency filters are generally replaced every 2-3 months, once every six months to replace, so efficient filter life is generally more than 2 years;
  However, in order to protect post-high-level filters use and protection of the safe operation of the clean room, the owners of many clever replacement effect beginning of each month, every three months to replace the efficiency and sub-efficient (or the wind in front of the cabinet to do the last paragraph of selection of efficient protection filters), so you can ensure high efficiency filter 5 years (or 10 years) more than life, and because of the replacement of new filter resistance, air-conditioning load is greatly reduced, and filter replacement costs far less than the air conditioning run need electricity, frequent replacement of the pre-pre-filter is actually the air conditioning running in a low resistance load, save a lot of electricity;