Objectives In order to strengthen the hygienic administration of central air-conditioning ventilation system, the Ministry of Health of the People's Republic of China published the hygienic administration for central air-conditioning ventilation system in public places(HACAVS) and the hygienic standard for central air-conditioning ventilation system(HSCAVS) in public places. In order to ensure the implementation of the HSCAVS, as well as to secure the accuracy and comparability of testing data of related product properties, it was necessary to establish an air dynamic wind tunnel to test the performance of air cleansing and sanitizing devices.

Methods Based on the investigation and study of domestic central air-conditioning ventilation systems and existed problems of wind tunnel testing devices used by the manufacturers, according to the request in the HSCAVS in public places and in accordance with the requests of GB/T 14295-2008 Air Filters and GB/T 6165-2008 Test Method of the Performance of High Efficient Particulate Air Filter——Efficiency and Resistance and related standards of other countries, a new air dynamic wind tunnel was established.

Results The new air dynamic wind tunnel was established with high automaticality, the conditions for testing, collecting and processing data were worked by computer sets.

Conclusions The flow field of the wind tunnel was even and stable. The new air dynamic wind tunnel could provide a stable platform for testing the performance of air cleansing and sanitizing devices.