Stadler Form ROGER BIG Air Purifier


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With the Stadler Form Roger Big HEPA Air Purifier, you can quickly remove dust, smoke, odor, pet hair, dander, bacteria, and viruses in large bedrooms, living rooms, basements, large offices, and many other spaces.

Perfect for the office. Roger Big provides clean air in conference rooms, open-plan offices, and large spaces of up to 1,100 square feet.

With two sensors, the mobile room air purifier continuously measures the quality of the air and immediately detects pollutants such as unpleasant smells, volatile organic compounds (VOCs), pollen, fine dust, viruses, and bacteria.

If the air quality deteriorates, the air quality indicator lets you know by changing color. If the intelligent auto mode is also activated, Roger Big’s cleaning performance will be adjusted automatically.

The more polluted the air, the higher his chosen level of performance will be. The well-designed air purifier also has two washable, textile pre-filters – as well as an integrated Sanitized® hygiene function.

At the heart of the air purifier are two Dual Filters which are a combination of a HEPA filter and an activated carbon filter. The highly efficient H12 HEPA filter removes pollutants such as fine dust, allergens, pollen, viruses, and bacteria from the air while the activated carbon filter adsorbs gases from the air.

Besides a timer function, night mode, and wheels for easy transportation which enable him to be moved around,

Roger Big’s impressive features also include WiFi: you can monitor the air quality and control all his functions via an app so that clean and healthy room air is always guaranteed!

CADR 465 m3/h

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 feet of air per hour.

Air purifier ROGER BIG is suitable for rooms of up to 1,184 square feet and changes the air 3 times per hour. For heavily contaminated room air and for allergy sufferers, Roger is recommended for rooms of up to 490 square feet  – with an air change rate of 5 times per hour.

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 color (blue = good, orange = medium, red = poor).


The textile pre-filter removes coarse dust particles and pollutants from the air. By doing this, it protects the Dual Filter™ and prolongs its service life. The integrated Sanitized hygiene function protects the preliminary filter against microbial growth.

The textile pre-filter can be washed at 30 °C on a cold wash delicate cycle. Antimicrobial protection is guaranteed for at least 20 washes. Based on normal use, we recommend washing the pre-filter every 3 months while allergy sufferers are recommended to wash it 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 filter removes pollutants from the air, such as fine dust, pollen, viruses, and bacteria. Particularly suitable for allergy sufferers, ROGER BIG bears the ECARF quality seal. The activated carbon filter adsorbs gases present in the air (bad odors, tobacco smoke, formaldehyde, toluene, volatile organic compounds, etc.) and filters them out of the air.

Filter exchange

The capacity of the Dual Filter™ is limited, which means that it must be replaced every 8–12 months, depending on its exposure to air and gases. Thanks to the intelligent filter timer, ROGER BIG shows exactly when the filter needs to be replaced.

Filtering of particles

Roger’s Dual Filter™ produced convincing results during the TÜV test (particle cleaning test). Roger filters 100% of 0.255-micrometer particles (tested based on DIN standard 71460-1:2006). For comparison: human hair is 80 micrometers 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 that enables all Roger’s functions to be controlled in real-time. An additional child protection function that is only available via the app deactivates the buttons on the device for a chosen period of time.

Highlights & Details

  • Cleans the air in spaces up to 1,184 square feet in size
  • Combo Dual Filter™ with a HEPA and activated carbon filter
  • Removes odors, VOCs, pollen, fine dust, viruses, bacteria, tobacco smoke and more from the air
  • 2 internal sensors measure the air quality
  • Gas and particle sensor
  • The air-quality indicator changes color to visually show the air quality
  • 5-speed levels
  • HEPA reset button
  • Auto mode
  • Night mode with the ability to dim or turn off the LED light
  • Decibels: 30-65 dB(A)
  • Filter-change reminder
  • Timer with 1-7 hour settings
  • Filter material is made in Germany
  • Manufacturer's 1-year warranty