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3M 603 filter adaptor

3M 603 filter adaptor

The 3M 603 filter adapter (pair) is used along with the 3M 501 retainer to attach 3M 5925 & 5935 filters directly to 3M reusable face masks to provide protection from particulates. The adapter is specially designed for 3M half and full-face masks with bayonet-style filter attachments.



  • Connects the filter to the respirator
  • Quick and easy to fit
  • Specially designed for 3M face masks with bayonet-style fittings
  • Works in combination with 3M 501 filter retainer
  • For use with 3M 5925 & 5935 particulate filters
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