WORKS WITH ALL ATRIX OMEGA SERIES VACUUMS - The ULPA filter fits the Omega Series vacuums and can be used in 3M 497 SCS 497 Series. Compare to SCS SV-Filter, SCS 3M 78-8063-1506-1, SCS 54938. | | ULPA FILTER - The Atrix immediate containment patented ULPA filters have been indepently tested to to meet the the qualifications to capture 99.999% efficiency at 0.12 microns | | THREE LAYER 56 PLEAT COUNT MEDIA - This component is manufactured by Pentair. The Omega HEPA filter contains 56 pleat count, (1) cellulose support layer, (2) dual layer high performance glass media. | | RRP COMPLIANT FILTER - This micro particle filter complies with the EPA's Lead Renovation, Repair and Painting Rule (RRP Rule) that requires firms performing renovation, repair, and painting projects to follow lead-safe work practices. | | HAZARDOUS PARTICULATE CLEANING - There are many applications and industries that make this filter the ideal tool for hazardous particulate cleaning. Perfect for gl.