How to choose the pre filter and secondary filter?

Author: Wines ChinaAddTime: 2017/5/2 9:31:09

Pre filter and secondary filter can make the HEPA filter a longer life, they captured most large dust particles which makes the HEPA filter works easier, that is why it is been widely used in many products, so How to choose the pre filter and secondary filter?



1. Choose the necessary air filter
Different company has different requirement for air cleanliness, we suggest to choose the primary efficiency air filter or medium efficiency air filters according the efficiency of terminal HEPA filter, if the previous filter efficiency is quite different with the next one, then the previous filter can’t protect the next one.
Generally speaking, we suggest to install a air filter every 2-4 sections, for example, install like G2-F5-H8.

2. Filter media area should be as large as possible
Larger filter media will make the pre filter/secondary filter a longer life, 50% increased in filter media area may 70%-80% prolong the pre filter/secondary filter under the certain final resistance. The larger the filter media area, the higher dust holding capacity and lower resistance.

Above are just some simple points of choosing the right air filters, which we still suggest you to choose it according to your actual requirement, Changyuan Technology Industry Co.,Ltd is a professional air filter manufacturer, our products are meet with China GMP, USA FDA and EU-GMP standards, contact us for more details if you are interested in it.