Description Choice of M1 OR M2 Main Filters M1 Main Filter – 6’’Wx8.5’’Hx7.25’’D – rated 16 procedural hours M2 Main Filter – 8’’Wx15’’Hx8’’D – rated 32 procedural hours. Consists of a charcoal/odor filter and an ULPA filter – rated 99.99997% efficiency on particles 0.01 micron and 0.12 microns MPPS. Filters have been tested and certified to be free of leaks at time of shipment. Sealed unit with plug for easy disposal. M-1 rated 16 procedural hours, M-2 rated 32 procedural hours. M1-filter, M2-filter
