Standards Development
This document specifies a general laboratory test method for measuring perceived air quality that is applied for assessing the performance of air cleaners for gas-phase pollutants.
There is an increased interest in the development of air cleaners. Air cleaners, e.g., air purifier, have been marketed for removing airborne pollutants via physical sorption, physicochemical sorption or chemical reaction, e.g., oxidation. The performance of air cleaners is firstly evaluated by removal efficiency which is defined by the ratio in concentration of pollutants downstream and upstream the air cleaners; the resulting effect on perceived air quality is usually not taken into account. Against this background, harmonized test methods for using perceived air quality in the process of evaluation of performance of air cleaners are important for comprehensive performance assessment of air cleaners that are used for the reducing the level of various indoor pollutants. Perceived air quality is evaluated by human subjects (panels). The purpose of this document is to specify a test method for measuring perceived indoor air quality for use in testing the performance of air cleaners for removal of gas phase indoor pollutants.
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