HEPA Filter with Pre-filter for Model 200 Sentry Air Systems – MERV 17 Air Filter for Fume Extractors, Fume Hoods, Portable Clean Rooms, and Air Cleaners – 99.97% efficiency down to 0.3 microns

HEPA Filter with Pre-filter for Model 200 Sentry Air Systems – MERV 17 Air Filter for Fume Extractors, Fume Hoods, Portable Clean Rooms, and Air Cleaners – 99.97% efficiency down to 0.3 microns