recently, 33 cases of fever occurred in a unit in Xicheng District, Beijing. The novel coronavirus pneumonia cases were excluded from the study by the expert group. Most patients reported fever and the recent use of central air conditioning, and initially identified as collective fever caused by common exposure factors. The pathogen was initially identified as group A hemolytic streptococcus.
nowadays, high temperature mode is turned on in many places. However, the current epidemic is not over. Can I turn on the air conditioner at home in special times? Will there be hidden dangers of epidemic prevention in central air conditioning? How to use air conditioning scientifically? Let’s learn together.
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before, The State Council issued novel coronavirus pneumonia guidelines for the operation of office premises and public places during the epidemic period of the new crown pneumonia, according to the New Coronavirus group’s comprehensive prevention and control mechanism. Official guidance on the operation and management of air conditioners under different conditions and types:
immediately shut down the central air conditioning and ventilation system corresponding to the activity area of confirmed cases and suspected cases.
immediately carry out forced cleaning and disinfection of the central air conditioning and ventilation system in the above areas.
◆ other precautions for using the central air conditioning and ventilation system include:
when using the central air conditioning and ventilation system, ensure that all rooms in the building have air circulation and sufficient fresh air supply.
during the epidemic period, if the situation permits, priority should be given to opening windows for natural ventilation. If possible, exhaust fans and other air extraction devices can be opened to strengthen indoor air flow.
chlorine containing disinfectant has certain corrosivity to metals. It is recommended to give priority to quaternary ammonium salt disinfectant for metal parts requiring disinfection.
◆ disinfection method
filter
should be cleaned before disinfection. Quaternary ammonium salt disinfectant or 500mg & nbsp/ L chlorine containing disinfectant is sprayed or wiped for disinfection.
air outlet and air handling unit
shall be cleaned first and then disinfected. Chemical disinfectant can be used for wiping and disinfection. Quaternary ammonium salt disinfectant is preferred for metal parts, which shall be disinfected according to the concentration specified in the manual for surface disinfection. 500mg & nbsp; is preferred for non-metallic parts/ L chlorine containing disinfectant or 0.2% Peracetic acid disinfectant.
surface cooler and heater (humidifier)
should be cleaned first and then disinfected. Quaternary ammonium salt disinfectants can be sprayed or wiped and sterilized, according to the instructions for disinfecting the surface for disinfection.
condensate tray
should be cleaned first and then disinfected. Quaternary ammonium salt disinfectants can be sprayed or wiped and sterilized, according to the instructions for disinfecting the surface for disinfection.
air duct
should be cleaned first and then disinfected. Disinfectants can be sterilized by chemical disinfectants, and quaternary ammonium salt disinfectants are selected as the first choice for metal tubes. Disinfection is prescribed according to the instructions. 500mg / L chlorine containing disinfectant or 0.2% Peracetic acid disinfectant is preferred for non-metallic pipe wall.
