There are differences of overall cleanliness display values and colours for each product.
Air circulation is continued after the product operation.
If products of different models are used in one space, the contamination concentration value may be displayed differently by the indoor air circulation, and if it is a closed space, as more fine dusts are removed, the difference of the values gets smaller.
Overall cleanliness does not change from Good.
All the windows of the room are closed.
If it is a closed space with almost no air circulation, the level may not change from Good. If overall cleanliness changes when the window or door of the room is opened and air is circulated, it is normal.
The PM1.0 Sensor is dirty.
Clean the PM1.0 Sensor.