This study utilized the following aerosolized pathogens:
Bacillus subtilis (non pathogenic Anthrax)
Mycobacterium avium (non pathogenic Tuberculosis)
The objective of this study was to measure the effective Clean Air Delivery Rate (CADR) of Accents
In Water water features. The CADR testing was structured to measure the rate at which a water
feature can render the environment free of airborne pathogens over a measured amount of time.
Clean Air Delivery Rates are surprisingly effective and vary based on the size of the water feature.
A 4x8 water feature will effectively clean 30 cubic meters of air per hour. Please see the study
results for further clarification.
This study was performed by Dr. Mark Hernandez, PhD, PE, Principal Investigator, at the University
of Colorado at Boulder, College of Engineering and Applied Science
University of Colorado - Air Report - Full Report