ASHRAE 185.3-2024 PDF

ANSI/ASHRAE Standard 185.3-2024 establishes a test method for evaluating commercial and industrial in-room air-cleaning devices and systems for microorganism bioaerosol removal or inactivation in a test chamber.

This standard:

• Specifies selected indicator microorganisms in the test chamber and defines procedures for generating the bioaerosols required for the method of test.

• Provides a method for counting the number of viable microorganisms in the chamber to calculate the elimination efficiency for each microorganism.

• Establishes minimum performance specifications for the equipment required to conduct the tests, defines methods of calculating and reporting results obtained from the test data, and establishes a reporting system to be applied to in-room devices and systems addressed by the standard.