Evaluation of the Effects of a Photocatalytic Air Purifier

Abstract

It has been experimentally shown that a photocatalytic air purifier is effective in reducing the airborne bacteria count. The effect was quantified by assigning conditions to an L18 orthogonal array and placing an agar medium above a bacteria collector to collect bacteria in room air purified by the purifier. The bacteria were cultured at 37℃ Celsius for 72 hours. Bacterial growth was captured through image changes. The change over time was quantified, using the initial bacteria growth condition as a unit space and using the RT method to treat the bacteria growth images as distances.