Mann-Filter has issued recommendations for choosing cabin filters in motorhomes. Experts suggest using activated carbon or bioactive filters to improve cabin air quality, especially after long periods of inactivity. Replacement is advised at least once a year or every 15,000 kilometers.
Carbon filters trap harmful gases, while the FreciousPlus model additionally reduces allergens and bacterial growth. Replacement is particularly important after winter storage to prevent mold. Filters are available for common platforms, including Fiat Ducatoⓘ and Mercedes Sprinter.