Here are the following things you can do to improve the air purification quality of your unit:

1. Press the Control Button to increase fan speed.
2. Make sure no objects are blocking the sides or top of the air purifier.
3. Make sure the filters are removed from its packaging and properly placed.
4. Close doors and windows while using the air purifier.
5. If the room is larger than the designated area coverage, air purification will take longer. The air purifier may not be as effective in significantly larger rooms.
6. Replace the filters.