Proper installation of the pre-filter on the HAKKO FA-430 HEPA Compact Fume Extraction Unit
- Proper installation
Install the pre-filter inside the frame of the main filter as shown in image 1.
Be sure to check that there are no gaps at the corners as shown in image 2.
- Improper installation
If the pre-filter is not installed properly as shown in images 3 and 4, the main filter will degrade its original performance quickly.