Applicable with Robot Vacuum Model: E20 E30 E31
There are twelve Filter sponge and twelve Strainer HEPA in the box. The filter sponge can efficiently filter allergens like dirt or pollen. The advanced strainer HEPA captures 99.97% of the 0.3-micron particles in the air, which promises you a much cleaner living environment with fresh air.
Please clean the filters once per week(twice per week if you have pets).
It is recommended to replace the filter every 2 months.