Atrix Secondary HEPA Filter

Replacement secondary HEPA (High Efficiency Particulate Air) filter for the ATIBCV Antimicrobial Class 100 HEPA vacuum. This is the secondary filter of a two HEPA filter system. They are used within the Antimicrobial Dry Vacuum Cleaner. The primary filter catches the first of the incoming particles and a secondary filter prevents escape of dust from the carbon brushes.