Replacement filter for Stadler Form Roger Air Purifer (see separate listing for Roger Little filters
The Dual Filter is a combination of HEPA and activated carbon filter
The filter material is made in Germany
The HEPA part filters pollutants out of the air, such as fine dust, pollen, viruses and bacteria
The activated carbon filter adsorbs gases (bad smells, tobacco smoke, formaldehyde, volatile organic compounds, etc.)
The Dual Filter has to be replaced every 8 – 12 months
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