The Xiaomi Smart Air Purifier has poor odor removal performance

The air purifier filters odors by circulating indoor air, passing it through the activated carbon inside the filter. The activated carbon adsorbs the odors, thereby achieving the purpose of odor filtration. This process requires a long duration to be effective. If there is a continuous source of pollution in the environment, and the odors generated exceed the filtration speed, the odor removal cannot be noticeable.
The primary function of an air purifier is to filter PM2.5 particulate pollutants. Over time, prolonged use and increased environmental humidity can gradually reduce the filter's effectiveness. At this point, cleaning the pre-filter outside the filter and air-drying it outdoors is necessary to restore some of the activated carbon's effectiveness and airflow. However, it will not return to the condition of a brand-new filter. This is a normal phenomenon.
If the odor is temporary, it is recommended to open windows for ventilation to disperse the smell. If the odor has been present for a long time, it is advisable to find the source of the pollution and eliminate it at its root. The air purifier's odor removal function is a supplementary method.