Guest guest Posted January 26, 2008 Report Share Posted January 26, 2008 There are instructions on how to test the fit of a disposable filter at the 3M link on right side of this webpage. See in the far right column, a link to 'multimedia', and then look for 'check the seal' section. It says to put your hands over respirator and take a deep breath in and mask should collapse slightly. If it doesn't, then air is able to get in around edges: http://www.cdc.gov/niosh/npptl/topics/respirators/disp_part/p100list1.ht ml --- In , " Carl E. Grimes " <grimes@...> wrote: > > a, > > Technically you are wrong, but speaking from a practical point of > view you are very likely correct. Quote Link to comment Share on other sites More sharing options...
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