HEPA Filters

HEPA Filters

HEPA Filters (High Efficiency Particulate Air Filters)

HEPA filters (High Efficiency Particulate Air) are high efficiency air filters available for the filtration of small particles. General definitions rate HEPA filters as capturing a minimum of 99.97% of contaminants at 0.3 microns and larger in size. HEPA/ULPA Filters from FWI are rated at 99.997 at 0.12 micron and above. Options available with these HEPA filters include the following:

  • Frames: Metal or Wood
  • Gasket Locations: Downstream or Upstream or on both faces depending on air flow direction.
  • Separator materials can be different.
HEPA Wood Frame - Gasketed
Galvanized Double Box Frame
Galvanized Frame with Gasket
HEPA Mini-Pleat

Call us at 603-434-9577 or contact us for more information.

About Us:

Filters, Water & Instrumentation, Inc. (FWI) has been in business for 25 years, providing Filter Products, Water Purification Equipment and Instrumentation to industrial accounts in New England.

Serving the greater New England area, including: MA, NH, ME, VT, CT, RI, and NY.

Contact us:

Filters, Water &
Instrumentation, Inc.

15 Londonderry Road, Unit 11
Londonderry, NH 03053


Phone: 603-434-9577
Fax: 603-434-2832


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