HVAC系統 易遭微生物污染HVAC systems vulnerable to microbial contamination

HVAC系統 易遭微生物污染 不論是住家或商業建築，多數人一天之中平均有20個小時都待在室內，因此霉菌中毒對暖氣、通風設備與空氣調節系統 (即heating, ventilation, air conditioning 簡稱HVAC) 所造成的影響，不可輕忽。現代的HVAC系統與人類呼吸循環系統息息相關：HVAC系統供應調節過的空氣，確保室內人員的舒適，並讓他們在建築物內正常運作；呼吸系統輸送含氧的空氣到肺臟，再經循環到全身各處，對維持人類生命，更是不可或缺。HVAC系統內部的過濾器，是設計來捕捉微小粒子及空中的微塵，包括有機物、皮膚屑、昆蟲軀體、紙張纖維、菌類孢子等等，人類的肺臟也有同樣的功能。這些過濾器具有吸濕性，很容易變成大量霉菌孢子的溫床，尤其是HVAC系統的過濾器，堆積的灰塵與濕氣，則更加助長了霉菌孢子的繁殖。 在天氣漸漸轉涼的季節，「去水盤」中的水及「冷卻盤管」中的凝水是去除細菌及真菌增殖的好時機。這些細菌及真菌會產生過敏原，對健康不利，細菌感染也會伺機發生。受到細菌與真菌污染的物質，發出些微怪味，這是一種揮發性的有機物，可能就是嚴重污染的首要警訊，也可能是HVAC系統中污染範圍擴大的第一個徵兆。另外還有一些HVAC中的微生物，包括幾種喜歡在水中傳播的細菌: 退伍軍人桿菌 (Legionella) 會導致退伍軍人病Legionnaires’ disease 。綠膿桿菌 (Pseudomonas aeruginosa) 可能伺機引發感染。Cladosporium、Penicillium 和Aspergillus 等也都是寄生於污穢HVAC系統中常見的黴菌，它們的孢子都可能造成嚴重過敏症。 ／鎮暄 2008-09-28 HVAC systems vulnerable to microbial contamination Whether home or commercial building, and most of the day an average of 20 hours is to stay indoors, so mold poisoning of heating, ventilation and air-conditioning system (that is, heating, ventilation, air conditioning referred to as HVAC) the impact of Can not be overlooked. The modern HVAC system and the human circulatory system is closely related to respiratory: HVAC system over the air-conditioning supply to ensure indoor comfort and allow them to the proper functioning of a building; respiratory air transport oxygen to the lungs via circulation to the Body, the maintenance of human life, it is indispensable. HVAC system's filters are designed to capture tiny particles and dust in the air, including organic, skin debris, the body of insects, paper fiber, fungus spores, and so on, the human lung has the same function. These filters have a moisture absorption, it is easy to become a breeding ground for a large number of mold spores, in particular the HVAC system filters, the accumulation of dust and moisture, the more encouraged the propagation of mold spores. Gradually in the cooler weather of the season, "set to water" in the water and "cooling coil" in the condensate water is the proliferation of fungi and bacteria to remove a good time. These bacteria and fungi produce allergens, adverse health, opportunistic infections will occur. Bacterial and fungal contamination by the material, issued by the smell slightly, this is a volatile organic compounds, may be seriously contaminated the first warning, or it may be contaminated HVAC system to expand the scope of the first signs. There are also a number of HVAC in the micro-organisms, including several like it in the water-borne bacteria: Veterans bacteria (Legionella) will lead to the disease Legionnaires' disease. Pseudomonas aeruginosa (Pseudomonas aeruginosa) may lead to opportunistic infections. Cladosporium, Penicillium and Aspergillus, and so are parasites on the dirty HVAC system common mold, and their spores may cause serious allergy. / The town of Xuan 2008-09-28 View more information, see the World Journal reported that e-ePaper

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