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Pre-evaluation of centralized air-conditioning ventilation system hygiene


The centralized air conditioning ventilation system is widely used in buildings, but due to certain defects left behind in design and construction, as well as the lack of timely cleaning, etc., the centralized air conditioning ventilation system may become a medium for the spread and diffusion of pollutants and microorganisms. In response to the above-mentioned problems, the Ministry of Health issued the "Health Code for Centralized Air Conditioning Ventilation Systems in Public Places" Health Circular No. [2012] 16 and three other health industry standards, WS 394-2012 Health Code for Centralized Air Conditioning Ventilation Systems in Public Places, WS/T 395-2012 Hygienic Evaluation Code for Centralized Air Conditioning Ventilation Systems in Public Places, WS/T 396-2012 Public Places Centralized air-conditioning ventilation system cleaning and disinfection norms; management units should be cleaned regularly in accordance with the centralized air-conditioning ventilation system health management standards; management units should be tested and evaluated according to the norms for the hygienic evaluation of centralized air-conditioning ventilation system in public places, testing the items that do not pass the index, take the appropriate transformation, cleaning, disinfection and other measures; in the discovery of infectious patients or suspected infectious patients and airborne disease outbreaks, the When the epidemic, the management unit should be cleaned and disinfected in accordance with the relevant requirements. "Public places centralized air conditioning ventilation system health management approach" states that "the construction unit shall, in accordance with relevant national and provincial regulations, in the review phase of the architectural design documents, the completion of the acceptance phase of the materials submitted, including the content of the centralized air conditioning ventilation system design and completion of the hygienic evaluation report."


Service objects: hotels, restaurants, theaters, concert halls, video halls (rooms), amusement halls, dance halls, bars, cafes, coffee shops, gymnasiums, shopping malls (stores), exhibition centers, bookstores, passenger train cars, ship cabins, aircraft cabins, etc.


 

Evaluation and testing projects

Evaluation, testing categoriesEvaluation, testing parameters
Pre-evaluation of centralized air-conditioning ventilation system hygienePreparation of report (including outline), preparation of report form, evaluation of report (including outline), evaluation of report form
Air supply outletTotal number of bacteria, total number of fungi, β-hemolytic streptococci, PM10
Inner surface of air ductTotal number of bacteria, total number of fungi, dust accumulation
Fresh Air SystemFresh air volume
Condensate, cooling water, humidification equipment waterLegionella pneumophila


Hongcai Inspection has good cooperation with Wal-Mart, China Resources, China Film Group, Grand Hyatt, 7 Days Inn, KFC, McDonald's and other enterprises, and has rich experience in centralized air conditioning health inspection.


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