Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size
ASHRAE Standing Standard Project Committee 52.2


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2019 ASHRAE Winter Conference & AHR Expo
Atlanta, GA | January 12–16, 2019

SSPC 52.2 Saturday Jan 12th 8:00 am - 12:00 pm
Location TBD


Project Committee meeting minutes are available to interested parties upon written request of the Manager of Standards. Attachments to minutes may or may not be included due to file size and/or because copyrighted intellectual property is included. Decisions to distribute attachments to the minutes will be made on a case by case basis and due to the size of the request may take longer to process.

Title, Purpose, and Scope

1. PURPOSE: This standard establishes a test procedure for evaluating the performance of air-cleaning devices as a function of particle size.


2.1 This standard describes a method of laboratory testing to measure the performance of general ventilation air cleaning devices.

2.2 The method of testing measures the performance of air cleaning devices in removing particles of specific diameters as the devices become loaded by standardized loading dust fed at intervals to simulate accumulation of particles during service life. The standard defines procedures for generating the aerosols required for conducting the test. The standard also provides a method for counting airborne particles of 0.3 to 10 µm in diameter upstream and downstream of the air cleaning device in order to calculate removal efficiency by particle size.

2.3 This standard also establishes performance specifications for the equipment required to conduct the tests, defines methods of calculating and reporting the results obtained from the test data, and establishes a minimum efficiency reporting system which can be applied to air cleaning devices covered by this standard.



Committee Chair

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Kathleen Owen


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Todd McGrath


Upcoming Society Conferences

2018 Annual Conference
June 23–27, 2018
Houston, TX

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