With the arrival of summer, air conditioning became a necessity this season. When people walk in the mall, sitting in the office blowing breeze, feeling the room when the house are two different worlds, have never thought that you are breathing is a lot of bacteria and dust with dirty air? Reports and investigations, said commercial buildings, hotels, office buildings and other public places behind the central air conditioning system, hidden ... ...
Central air conditioning Cleaning Flow HC HVAC & R Network Wearing a sweater jacket a week ago, and shortly saw the streets full of wearing a T-shirt, shorts, people, not feel the spring, summer, thanks to the widespread up.
With the arrival of summer, air conditioning became a necessity this season. When people walk in the mall, sitting in the office blowing breeze, feeling the room when the house are two different worlds, have never thought that you are breathing is a lot of bacteria and dust with dirty air? Reports and investigations, said commercial buildings, hotels, office buildings and other public places of the central air conditioning system, there lie a section covered with dust and bacteria in the Air hose , Which is dotted with thick dust, the bodies of rats and cockroaches, the construction of left boxes, gloves, invisible bacteria. However, this is not sensational.
Years issued many relevant policies, but in the end because of ineffective implementation, can only become "air-conditioning."
Cleaning constantly put the final implementation of regulations is difficult
2006 2 10, the Ministry of Health issued "public places, air conditioning system in health management approach" (hereinafter referred to as "measures"), followed by supporting introduction of central air conditioning ventilation systems in public places, "Evaluation of Health Specification", "Health norms "and" clean norms ", known as" the three rules of a law. "
2009 6 months, the Shanghai Health Department drafted the "Shanghai central air conditioning ventilation system health management approach" to the central air conditioning made a mandatory requirement for regular cleaning.
2010 4 months, Taizhou City, Shandong Province issued a notice, from now until November of this year, fully carry out the central air conditioning and ventilation system disinfection. All units must meet the qualifications of the unit employed standard cleaning, the cleaning process to the whole Video . Reported to local health oversight agency qualified, disinfection before the end.
... ... Policy has been out, but it is difficult to implement.
In accordance with the conventional, central air conditioning and ventilation systems are generally cleaned once every two years, but most of the city's cleaning is not optimistic. In many parts of the inspection found that many office buildings, hotels, department stores, supermarkets and other buildings used by central air-conditioning, washing more than 10 years did not account for the majority.
Why so difficult? According to reports, this intermediate involves several difficult issues. First, the cost of cleaning a building as little as tens of thousands, as many as hundreds of thousands, cleaning costs are higher, in the original contract with the property companies in the blank for this is that the money in the end who is out? Second, Cleaning is a hidden central air conditioning works, good and bad in all business services, cleaning effect of a who monitors them? these practical problems surfaced, also led to stagnation in the cleaning industry.
Shanghai Tongji University Heat Pump Use and Air Conditioning Institute Deputy Director, Shanghai air duct cleaning, vice president of Mr. Xu Wenhua On this matter it had said: "In the cleaning industry is facing heavy resistance to the status of the promotion, the concept of not only the general public for cleaning rather vague, even understanding of the Ministry of Health there for cleaning errors. We just started the cleaning industry, there is no doubt to face a lack of standardized management, oversight mechanisms disorderly market. At this time the Ministry of Health began management, and he wanted them cleaning business intelligence by him to manage, so he must have qualifications or training, to buy four sets of equipment he can do more than 2000 square meters, three-star projects, this out we find it very funny, engaging in the now certified the two, mean that other companies have failed. As the Ministry of Health does not know technology, understand our line of business, unable to get to the cleaning process certification, assessment of the indicators can not realistically that the implementation does not go naturally. "
Long-term harm of not cleaning Most central air conditioning air conditioning system for the return air, Indoor Air Is recycled, the cleanliness of the air conditioning to rely on their regular delivery of fresh air filter and to maintain. If the central air conditioning long-term use without cleaning, dust lead pipe in the breeding of various types of harmful microorganisms such as viruses, bacteria, fungi, Legionella microorganisms, air-conditioning duct is also vulnerable to rats, cockroaches and other animals and insects, space for activities .
Has central air conditioning is not to "wash", a result is to make building suffering from "bad building syndrome." Inability of humans easy fatigue, dry throat, eye irritation, distraction. May also lead to serious outbreaks of Legionella pneumonia, pop.
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