Air purifiers essentially work by sanitizing the air, which may include pollutants, allergens, and toxins. They’re the exact opposite of essential oil diffusers and humidifiers, which add particles to indoor air. The LED display of the Blueair air purifier is easy to read and provides information about the current settings and air quality in the room. An integrated filter exchange display informs you when it is time to change filters. Air purifiers do not add any moisture to the air. Allergies can easily trigger an illness, especially for hypersensitive people. A slim cylindrical design whose footprint takes up a diameter of only about 25 cm. 36 m² corresponds to a variety of spaces, such as living and dining rooms, bedrooms, baby rooms, office etc.