Cleaning the Particles Sensor
The PM1.0 sensor is the device detecting fine dust and large dust contamination levels, so it is recommended to clean the lens periodically, at least once every 2 months.
Open the sensor cover.
Clean the lens with a cotton swab soaked with water and clean it again with a dry cotton swab.
Close the sensor cover.
Note
Do not wipe the sensor with any substances other than water. It may cause a appliance to malfunction.
When opening or closing the sensor cover, a sound may be heard as a result of friction.