According to the use of reasonable requirements to determine the level of filter efficiency.
Typically, the end filter determines the cleanliness of the air, the former filter to protect the role of the end filter, which extends the life of the end filter to reduce maintenance costs, protect the air conditioning system to work.
Specific process:
1. Determine the efficiency of the final filter according to the cleanliness requirements;
2. Select the final filter protection filter, if necessary, in the selection of the intermediate filter before the level of protection filters, usually protective role of the filter is called pre-filter;
3. Select the pre-filter and the use of the environment, spare parts costs, operating energy consumption (the current domestic users with little concern about energy consumption), maintenance and supply factors such as comprehensive consideration after the decision;
4. Special attention to the issue: the end of the clean room efficiency of air filters need to be no less than the efficiency of the F8 filter protection (mainly for fresh air treatment), air-conditioning system also need air filter protection;
5. Determine the filter points: the performance of the final filter to be reliable, pre-filter efficiency specifications to be reasonable, and to facilitate maintenance.
