With the continuous improvement of social and economic level, people living, office, business and other environmental requirements are getting higher and higher, a variety of shopping malls, hotels, restaurants, offices, conference rooms and other public places are installed large central air conditioning, There is no ventilation pipe cleaning, many public places ventilation and air conditioning system pipe dust in a large number of particles of microorganisms, bacteria, fungi, carbon dioxide, respirable particulate matter, the people's health had a significant impact.
Ventilation Pipeline Central Air Conditioning System Pollution Status According to the survey, some areas of 900 / a public places in the central air conditioning system duct has never been cleaned, most of the Suzhou ventilation pipe in the deposition of heavy particles of pollutants, and some even reached 280g / m2, these particles contaminants contain a large number of microorganisms, bacteria, fungi, respirable particulate matter and other harmful substances, sent to the indoor air duct, a serious impact on indoor air quality, people's health has brought great harm As early as 2004, the Ministry of Health in the country more than 60 cities, nearly a thousand hotels, shopping malls and other public places in the central air-conditioning sampling, testing indicators for air conditioning duct dust, dust in the bacterial content and fungal content, The results showed that hygienic pass rate was only 6.2%. Which is the main reason for air duct pollution, sampling nearly a thousand hotels, the dust duct dust exceeded the most serious up to 476 times. According to the "public places centralized air conditioning and ventilation system health norms" of the evaluation criteria, are serious pollution of the central air conditioning and ventilation system has 441, accounting for 47.1% of the total number of sampling, 438% of the total pollution accounted for 46.7% of the total number of sampling, qualified 58 Accounting for only 6.2% of the total number of sampling 121.
In view of the above results, people on the central air conditioning ventilation system caused by air pollution issues more attention to the hope that the central air conditioning and ventilation system can be promptly cleaned, to improve the public air quality of the call is more and more urgent.