|Filtering of viruses
||Test results show that air purifier Roger big from Stadler Form can remove 99.9% of living SARS-CoV-2 viruses which cause COVID-19 from the air. According to the United States Environmental Protection Agency (EPA), “when used correctly, air purifiers can help reduce pollutants in the air in residential buildings or enclosed spaces, including viruses.”An air purifier like Roger big can help reduce the risk of viral infections and thus provide his family and anyone else in the house with the best possible protection against becoming infected with the coronavirus. An additional test confirmed: air purifier Roger big efficiently filters 99.9% of all influenza A viruses and aerosols from the air in 60 minutes (tested in a 28 m³ test chamber).
||The CADR (Clean Air Delivery Rate) indicates the volume of purified air that the air purifier can produce. Our value was determined by means of independent laboratory tests based on the AHAM standard. Higher CADR values mean that the air purifier can be recommended for larger spaces. The CADR is measured in cubic metres of air per hour. Roger big is suitable for rooms of up to 104 m² and changes the air 3 times per hour. For heavily contaminated room air and for allergy sufferers, Roger big is recommended for rooms of up to 62 m² – with an air change rate of 5 times per hour.
|Polluted indoor air
||The air indoors is 2–5 times more polluted than the air outside. We spend approx. 90% of our time indoors and are constantly exposed to this pollution. Typical impurities are volatile organic compounds (e.g. formaldehyde), fine and suspended dust, unpleasant odours as well as viruses and bacteria. Allergy sufferers are also troubled by pollen and the excrement of dust mites. Optimally purified air leads to a great sense of wellbeing, improved vitality, and fewer illnesses. Roger, Roger little and Roger big provide the perfect help to free the air of pollutants.
|Air quality indicator
||Roger big shows the quality of the room air. He continuously measures the quality of the air with his sensors. The air quality indicator lets you know if air quality deteriorates by changing its colour (blue = good, orange = medium, red = poor).
||The textile pre-filters remove coarse dust particles and pollutants from the air. By doing this, they protect the two Dual Filters™ and prolong their service life. The integrated Sanitized®hygiene function protects the pre-filters against microbial growth. The textile pre-filters can be washed at 30 °C on a cold wash delicate cycle. The antimicrobial protection is guaranteed for at least 20 washes. Based on normal use, we recommend washing the pre-filters every 3 months while allergy sufferers are recommended to wash them once a month.
|Dual Filter™ technology
||The Dual Filter™ is the heart of the air purifier. It is a combination of a HEPA filter (H12) and an activated carbon filter. The HEPA filters remove pollutants out of the air, such as fine dust, pollen, viruses and bacteria. Roger big bears the ECARF quality seal and is particularly suitable for allergy sufferers. The activated carbon filter adsorbs gases present in the air (bad odours, tobacco smoke, formaldehyde, toluene, volatile organic compounds, etc.) and filters them out of the air.
||The capacity of the two Dual Filter™ is limited, which means that they must be replaced every 8–12 months, depending on their exposure to air and gases. Thanks to the intelligent filter timer, Roger big shows exactly when the filters need to be replaced.
|Filtering of particles
||Roger big’s Dual Filters™ produced convincing results during the TÜV test (particle cleaning test). Roger big filters 100% of 0.255-micrometre particles (tested based on DIN standard 71460-1:2006). For comparison: a human hair is 80 micrometres thick. So, the filtered particles are 313 times smaller.
|Device control via an app (Wi-Fi)
||Roger big is equipped with Wi-Fi and can be controlled via the smartphone app «Smart Life – Smart Living». The air quality can be monitored and controlled via the app which enables all Roger big’s functions to be controlled in real time. An additional child protection function which is only available via the app deactivates the buttons on the device for a chosen period of time.