IN SITU TESTS ABOUT THE INFLUENCE OF AIR IONS ON CONTAMINATION CAUSED BY AIRBORNE MICROORGANISMS AND VOCS

Abstract

This paper reports the in situ experimental results about the influence on concentration of airborne microorganisms, volatile organic compounds and aldehyde by air ions generated from an ion generator installed in an air conditioning system equipped in a super-high-rise commercial building located in Shanghai, China. Although the concentration of positive air ion and negative air ion raised up to 2.3 times and 1.9 times, respectively, by the operation of the ion generator, there was no reduction of the concentration in any of airborne microorganisms, volatile organic compounds and aldehyde.