KSV/KSV ES series sound insulated fans (about filters)
However, what makes this fan truly special are the built-in filters. Even the basic model can have up to three filters to make even highly allergic people happy: a G4 coarse filter, an F8 fine filter or H13 HEPA superfilter while a carbon odour filter can provide the final treatment for ultimate air purity.
But that is not the whole story! KSV ES modification can be fitted with an electrostatic filter which retains microscopic dirt and aerosol particles smaller than 0,01 micron. Such a filter provides the utmost efficiency of supply air cleaning.