Over the past decades, automotive air-conditioning (A/C) systems (ACS) have been undergoing constant improvements to achieve higher efficiency and also to address environmental concerns [1]. Recently, the odor from inside of an automobile has been recognized as one of indoor air pollutants, so it has become a difficult task to resolve in the automobile industry. More than 1500 plastic components, seats, insulators and other interior materials have been pointed out as the main cause of volatile organic compounds (VOCs) and odors emitted from new automobiles. Recently, air conditioner evaporators have been suspected as one of the odor sources in automobiles. Due to the odor mainly produced before and after operating the air conditioner, consumer complaints have actually increased. Some automobiles may exhibit musty and noxious or sour odor coming from the climate control system. It is most noticeable when the A/C is first turned on [2]. There have been several studies concerning the odors of air-conditioning systems [3–7]
Over the past decades, automotive air-conditioning (A/C) systems (ACS) have been undergoing constant improvements to achieve higher efficiency and also to address environmental concerns [1]. Recently, the odor from inside of an automobile has been recognized as one of indoor air pollutants, so it has become a difficult task to resolve in the automobile industry. More than 1500 plastic components, seats, insulators and other interior materials have been pointed out as the main cause of volatile organic compounds (VOCs) and odors emitted from new automobiles. Recently, air conditioner evaporators have been suspected as one of the odor sources in automobiles. Due to the odor mainly produced before and after operating the air conditioner, consumer complaints have actually increased. Some automobiles may exhibit musty and noxious or sour odor coming from the climate control system. It is most noticeable when the A/C is first turned on [2]. There have been several studies concerning the odors of air-conditioning systems [3–7]
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