KIT: HEPA filter and antistatic pre-filter

The HEPA filter filters the vacuumed air before it is exhausted. The filter retains 99.97% of dust, particles, and allergens measuring 3 micrometers in diameter. M-class.
Washable, with metal protection.

The pre-filter, attached to the HEPA filter, captures most of the dust to
prevent the filter from becoming blocked and makes cleaning the
filters easier.