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The BESS Lab online version of Agricultural Ventilation Fans, Performance and Efficiencies can be accessed by clicking on the "Performance Tests" button above

This online publication provides the livestock/poultry housing designer and greenhouse designer an unbiased source of performance data for over 800 commercially available ventilation fans ranging in size from 8 to 54 in diameter. The fans are searchable according to size, airflow, ventilating efficiency rating and manufacturers, so comparisons can easily be made between manufacturers and models.

Additional links related to ventilating agricultural building are listed under the "Additional info"button above.


University of Illinois, Department of Agricultural and Biological Engineering
332 Agricultural Engineering Sciences Building
1304 W. Pennsylvania Avenue
Urbana, Illinois 61801
Ph. 217-333-9406
Fax 217-244-0323
bess-info@illinois.edu