NAC459.0385. “Filtering facepiece” or “dust mask” defined.  


Latest version.
  • “Filtering facepiece” or “dust mask” means a negative pressure particulate respirator with a filter as an integral part of the facepiece or with the entire facepiece composed of the filtering medium, which is not equipped with elastomeric sealing surfaces and adjustable straps.

     (Added to NAC by Bd. of Health by R185-08, eff. 5-7-2010)