Frequently asked questions about Roger little

No, Roger little has to be switched on manually after the power supply is interrupted.

The LED strip on the front of Roger little 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 little’s LED strip 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.

Roger little removes the smallest particles which are not visible to the naked eye from both the air and respirable dusts. Particles smaller than 2.5 microns which can be deposited in the lungs are described as respirable. Roger little adsorbs particles measuring up to 0.2 microns with an efficiency of over 90%. He also filters even smaller particles from the air, but with a slightly lower degree of efficiency.

Roger little is fitted with a Dual FilterTM which is a combination of a HEPA filter and an activated carbon filter. The activated carbon particles are fine and black and incorporated in the Dual Filter™. Therefore the filter appears to be flecked with grey.

There are certificates for different types of HEPA filters. Our filters have no such certification.

No, ozone is only produced by air purifiers which contain an ioniser. Roger little does not have an ioniser and therefore does not produce any ozone.

Roger little is an air purifier designed to ensure that indoor air is clean. During ionisation, ozone is produced as a by-product which once again pollutes the air. Therefore, in order to achieve the highest possible air quality and keep the air as clean as possible, Roger little is not fitted with an ioniser.

Picture of Roger little On/Off Button

On the top of Roger little, you will find the on/off button. Press and hold the button down for 2 seconds to switch off the device.

Roger guarantees optimum air quality in large rooms and can circulate the air 3 times per hour in rooms up to 75 m2. Roger little is designed for smaller rooms and can circulate the air 3 times per hour in rooms up to 35 m2. In addition, Roger is fitted with a gas and a particle sensor while Roger little is fitted with a gas sensor. Both air purifiers filter both, particles and gases from the air. For more detailed information, click here.

Yes, your settings will be saved. If Roger little is switched off and then on again, the most recent settings used will be applied.

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).

The used filter has to be disposed of with regular household waste.

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