Yes, the Roger little (92 m²) is designed for areas of up to 92 m². There are different versions of the Roger little: the standard version is suitable for approximately 33 m², while the Roger little (92 m²) model you mention has a CADR capacity of 231 m³/h, allowing it to cover an area of up to 92 m². Both versions use the same Dual Filter™ filtration system with HEPA filter and activated carbon, but the 92 m² model offers better performance for larger rooms.
I have had this unit since March. It runs daily and the filter now shows in October that half of the filter capacity is used up. So I think changing the filter once a year is enough.
Using an air purifier at the same time as a fragrance diffuser is not recommended, and air purifiers should be used in a closed room. This device has a noise level of max. 59dB.