Coronavirus emergency can be faced (also) by correctly using the bus’s air conditioning system. Public transport means are one of the critical place for contagion, for the proximity of people commuting to and from work. Taking into account this, how should public bus air conditioners be properly used and effectively disinfected?
Here below is the decalogue published by the Chinese bus air conditioning supplier Cling. Based in Zhengzhou, the same city where Yutong is based, Cling says it has produced over 55,470 air conditioning systems in 2016.
Operational recommendations during the outbreak：
1、 During the epidemic period, it is not recommended to use air conditioning for vehicles. It is recommended to open windows for ventilation or use skylight exhaust fans to achieve the effect of rapid air exchange in the compartment.
2、 It is not recommended to use the air conditioner fresh air alone; if the air conditioner fresh air function is required, the windows and skylight exhaust fans must be opened simultaneously, which allows the rapid circulation of fresh air inside the compartment and the air conditioner, and to avoid the spread of air pollution in the compartment.
3、 Disinfect the air duct and return air port in accordance with the bus.
4、 If you need to use the fresh air function of the air conditioner to ventilate the compartment, please do the following:
1) Take out the dust screen of the air conditioner every day and clean it outside the vehicle at least once. The filter screen can be soaked in the chlorine containing disinfectant with effective chlorine concentration of 250mg / l-500mg / L for 30 minutes, then rinse it with clean water and dry it before use.
Note: It is not recommended to use alcohol for disinfection. If you use alcohol, it takes 30 minutes to fully volatilize, and then check and dry the screen before use to avoid potential fire safety risks.
2) The air conditioner is equipped with air purification and disinfection, anion purification and ozone disinfection functions. Users can increase the use of this function to disinfect and purify the carriage air.
3) The air outlet in the driver’s area should be closed. Because the driver works long hours, it is recommended to open the side window glass to inject fresh air into the driver and the compartment to avoid the transmission of viruses to the driver’s area.