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  • 1.7 to 223.9 SCFM capacities
  • 1/4" to 3" NPT connections
  • >99.97% at 0.3 micron particle removal efficiency
    • Compliant with HEPA and NFPA 99
  • ≤0.44 PSIG pressure loss
  • 7 PSIG max working pressure
  • Full vacuum max working vacuum


The Walker Filtration Alpha Series medical vacuum filter, commonly referred to as a bacterial filter, plays a crucial role in protecting vacuum pumps and preventing the release of harmful biological contaminants into the surrounding area.

The Alpha Series medical vacuum filter is specifically designed for use in critical medical applications to eliminate solid, liquid, and bacterial contamination in vacuum systems. These filters are widely used in hospitals, operating rooms, intensive care units, laboratories, veterinary hospitals, dental surgeries, and medical vacuum plant installations.

The Alpha Series medical vacuum filter provides guaranteed filtration performance greater than 99.995% (when independently tested in accordance with BS 3928-1969: Method for Sodium Flame Test from Air filters), and meets the requirements of NFPA 99.