Guest guest Posted August 13, 2001 Report Share Posted August 13, 2001 > > How do we know that filters were or were not used? Hi - I'm going to take a flyer on this one. The outcome would indicate that they weren't used or are they not 100% effective? Best- Nick Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 13, 2001 Report Share Posted August 13, 2001 > > How do we know that filters were or were not used? Hi - I'm going to take a flyer on this one. The outcome would indicate that they weren't used or are they not 100% effective? Best- Nick Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.