What does the ASHRAE 52.2 standard address?

The ASHRAE 52.2 standard specifically focuses on the testing procedures for air-cleaning devices. It provides guidelines for evaluating the performance of air filters and the efficiency of various air-cleaning systems. This standard is crucial in achieving healthy indoor air quality, as it helps determine how well a filter can remove airborne particles, thus assuring that a building's air-cleaning devices are effectively maintaining a clean and safe environment.

In the context of LEED certification, understanding and applying the ASHRAE 52.2 standard connects directly to credits related to indoor air quality and ventilation, reinforcing the importance of clean air handling in building design. The other choices do not align with the focus of the ASHRAE 52.2 standard, as they address different aspects of building performance, such as energy efficiency, water conservation, and acoustic design, but not specifically air-cleaning device testing.