天天博客

     If you want to buy some hepa, you need know the spec as following:

      1. efficiency

      2. air volume

      3. initial press drop

      4. material of frame

      5 . gasket  : single side or double side

This entry was posted on Monday, January 29th, 2007 at 11:42 am and is filed under career│purification tech, career│air filter. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.