The practical ionizing air purifier CA-277 of Clean Air Optima is suitable for your office desk or car. It uses six different technologies to effectively clean the air from dust particles, pollutants and odours. This is why the filters are an important component. They should be changed regularly to ensure their functionality. With this replacement filter set you have everything at hand to refill your air purifier CA-277 with fresh filters.nnWith this spare part, the HEPA UV Ionizer Air PurifiernnPackage contentn1x Filter set for Hepa UV ionizer air purifier Clean Air Optima CA-277.