Filter combination consisting of 3 special individual elements placed in series to reduce and eliminate the manifold air loads in the roomStrong triple filter: Multiple filtration for hygienic room air through pre-, HEPA (H13) and activated charcoal filtersConsisting of pre-, HEPA(H13) and activated carbon filter in cylinder formPre-filter: Coarse particle filtering of larger particles such as scales, hair and dustHEPA (H13 filter) made of fine fiber material: Captures smallest particles up to a size between 0.1 to 0.3 μm (e.g. bacteria 0.6 to 1.0 μm, fine dust 0.1 â 10 μm, pollen 10 â 100 μm) for an efficient air cleaning (degree of separation) of 99.95 %Activated carbon filter: Filters formaldehyde, benzene, other gases and unpleasant odors. Activated carbon has an excellent absorption capacity - it can deodorize, dehumidify, partially bind viruses and act sterilizingThis text is machine translated.