Frequently asked questions about Roger

The LED on the front of Roger indicates the current state of the air quality: blue = good, orange = moderate and red = poor. So if the LED strip turns red, that indicates poor air quality. This can be caused by smoke, odours, gases from e.g. wall paint, dust, pet hair, pollen, too much ventilation, room sprays, perfume or deodorant. Roger’s LED will also turn red if he is positioned close to ultrasonic humidifiers or aroma diffusers as the individual water droplets will be identified as particles.

No, air purifiers do not provide adequate protection against coronaviruses. While they are able to filter viruses from the air, they can only be used as additional support for a good indoor air climate (reduction of particles and gaseous pollution).

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