Back to Search
Start Over
Are air filter ratings misleading?
- Source :
- Air Conditioning, Heating & Refrigeration News. Oct 14, 1991, Vol. 184 Issue 7, p3, 2 p.
- Publication Year :
- 1991
-
Abstract
- Every mechanical product needs some measurement of performance to describe its level of usefulness. The unit for electric motors is horsepower; for furnaces, Btu. Air filters have an efficiency rating, [...]
Details
- ISSN :
- 00022276
- Volume :
- 184
- Issue :
- 7
- Database :
- Gale General OneFile
- Journal :
- Air Conditioning, Heating & Refrigeration News
- Publication Type :
- Periodical
- Accession number :
- edsgcl.11413981