At the present stage, the novel Coronavirus outbreak has become quite serious globally, and all countries are making concerted efforts for epidemic prevention and control. Clean and disinfect the air duct of the central air conditioner to ensure the healthy and clean indoor air and prevent cross-infection in the room, which can effectively control the spread of the epidemic and protect people's health and safety.

The central air conditioner is in a state of power for a long time. A lot of dust, mosquito bodies and dirt gather inside the air duct of the air conditioner. If it is not cleaned in a timely manner, bacteria and mites will easily breed and pollute the indoor air, which will cause various diseases. Nowadays, a global novel Coronavirus is constantly spreading through the air to purify the air and reduce the infection of viruses. Therefore, it is necessary to regularly clean the central air conditioning duct.