HDT’s Bag Prefilter is a disposable filter element specifically designed to reduce dust loading on the M98 HEPA filter. It is constructed of a two-ply, non-woven fabric for high dust capacities at low-pressure drops.

Features include:

  • Installs securely inside CBRN filter housing without tools or clamps
  • Available in five lengths
  • Does not require a critical seal
  • Quick and easy replacement without testing
  • Typical service life of six months
  • Compatible with the OpenAire® Housings, for dust removal during ventilation startup and balancing