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  • What is MERV?
  1. ASHRAE Air Filter
    Test Method
    52.2-1999
  2. M.E.R.V.
  3. Definition
  4. Why M.E.R.V.
  5. Test Duct Configuration
  6. Possible Downside?
  7. Average Efficiency?
  8. Determine the NEED
  9. Who Sets the Particle Size?
  10. Size Distribution of Atmospheric Dust Sample
  11. Ranges in ASHRAE Test Method
  12. M.E.R.V. Data
  13. M.E.R.V. 1 - 4
  14. M.E.R.V. 5 - 8
  15. M.E.R.V. 9 - 12
  16. M.E.R.V. 13 - 16
  17. M.E.R.V. Reporting
  18. M.E.R.V. Reporting
  19. What Does the 52.2-1999 Test Method Provide?
  20. Complete Loading Test
  21. Coming Soon?
  22. Test Method User's Guide

Air Filters Northwest, Inc.
Corporate Headquarters
16140 SW 72nd Ave.
Portland, OR 97224

Office: 503.968.3261
Toll-free: 888.968.2369
Fax: 503.968.3262
E-mail: info@airfiltersnw.com

Mailing Address:
P.O. Box 23773
Portland, OR 97281-3773

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