The Condair Cube is a unique, mobile air quality monitoring device, that measures the 
CO₂, Air Humidity and Temperature levels.

Keep your indoor air quality always in the green and breathe healthy air thanks to the Condair Cube!  This high-quality and handy device helps
you stay healthy indoors.
Place order here 


The Condair Cube has high-quality sensors that quickly and precisely measure the air quality everywhere: at home, at work, in a restaurant, in the gym or on the go on a train, bus, plane, or in the car.


    One glance is enough to monitor the indoors air

    – this is the first step to prevention.

    Observe the traffic light colors of the Condair Cube to find out the current levels simply and quickly. 

    Yellow means take action:

    • Ventilate, so that the CO₂ level drops and so the aerosol concentration 
      in the room decreases

    • Humidify the air for protection against pathogens

    The traffic light system of the Condair Cube is based on guideline values derived from international scientific evidence.

    A thought-out concept

    • Accurate measurements thanks to high-quality
      Sensirion sensors

    • Touchscreen and clear traffic light colors

    • Can be connected to a PC for larger live display on an external screen

    • Measured values visible over a 4-hour period
      (historic data may also be saved)

    • Small, robust and reliable

    • Rechargeable battery for 4-5 hours of operation

    • USB port for battery charging and data transfer

    • A Swiss innovation

    Discover more exciting options and tips on how to use your Condair cube to the max!

    - Display on a large screen

    - SD-Card

    - Extend battery life

    Cick here for more details

    The Condair Cube can be connected to a PC for a larger live display on an external screen.

    Proudly display that your indoor space has:

    CO₂ < 800 ppm

    - Air humidity between 40 und 60% RH

    - Temperature between 68 and 73°F
    20 and 23°C)


    The Condair Cube helps you create
    healthy indoor spaces.

    For work places, restaurants, medical offices, schools,  fitness center, and more.Click here for more details

    The power of the Condair Cube will help create a safe environment

    Viruses in a wet droplet survive for shorter time. Keeping your indoor space between 40-60%RH allows aerosols also settle faster resulting in less probability of being inhaled by building occupants.
    The  CO₂ levels are an indicator of the indoor air quality.

    Where there is a lot of CO₂ the probability that one gets infected with pathogens and viruses is greater. 

    Goal: Keep the CO₂ values of your indoor spaces below 800ppm.  If you find critical conditions above this range, ventilate your indoor space or leave the space as soon as possible.

    The Healthy Humidity i.e. 40 to 60% RH reduces significantly the transmission of viruses transported by aerosols (produced e.g. when coughing, sneezing or even speaking). This leads to fewer respiratory infections.
    Goal: Keep the relative humidity within this range.

    When everything's in the green range on your Condair Cube you have a heathy indoor space!

    Check out these scientific studies conducted from 1948 to 2019 that all demonstrate the positive benefits of maintaining a ideal, mid-level indoor humidity - the indoor humidity for health.

    We want to draw attention to the importance of indoor air quality for health!  This is important at all times an not just during a pandemic.  Humidity offers a natural and additional protection against infections in addition to hygiene, physical distancing and vaccines.

    Frequently asked questions - FAQ

    • There are different causes for different values. Mainly:

      - Tolerances of the sensors - these tolerances are specified in the Operating Manual, at page 20: Product specification.

      - The location where the calibration was carried out and what was thus the reference for the calibration.

      The outside air, which is used in the calibration, is usually in the range of 400ppm, but this can also be increased depending on the proximity to roads.

    • The temperature measurement of the Condair Cube is quite sluggish.

      The reason for this is that the sensor needs a certain time until it reaches the operating temperature and the housing as well needs a certain time for acclimatization.

      The Condair Cube is designed for indoor use. If it is used outdoors, the wind and the sun exposure can strongly influence the measured temperature.

    • Ventilate the room by opening the windows and creating draught – this is how you achieve the best air exchange. If the value has decreased, you can close the windows again after some time.

      In winter, regular draught-air ventilation is recommended so that the room air is most effectively and quickly exchanged.

    • Place the cube in fresh outside air for about 10 minutes and check the CO2 value after this time.

      If the value is in the range of 400ppm +30/-10,  the CO2 value is displayed correctly.

    • With autocalibration, it is important that the sensor is placed in one location for a longer period of time.

      The reason for this is that the sensor records a value every 4h, after 7 days this value series is evaluated and the lowest value is assumed to be 400ppm - and thus the Condair Cube is calibrated to this value.

      It is assumed that over a period of 7 days, the ventilation achieves at least once a value of 400ppm.

      It is also recommended to expose the sensor to fresh outside air at least 1 time a week.

    • The difference in altitude changes the air pressure, which has an influence on the CO2 measurement.

      So if you take the Condair Cube with you to another geographic location, it is recommended to calibrate the sensor soonest, so it displays correct values from the beginning.

    • Basically, the battery life is about 4 hours.

      By reducing the screen brightness or switching off the screen, the battery life can be extended significantly.

    • Set up the Condair Cube as described in the instructions and connect it via the USB cable.

      If it is operated permanently in one place, the sensor can also be best adjusted via auto-calibration.

    • The Condair Cube has a cavity on the lower side, in it there is a button on the left side.

      o    To turn on the Condair Cube, connect it via the USB cable OR press the described button for >2sec.

      o    If you want to switch off the Codair Cube once again,  press the same button on the bottom for approx. >4sec. until the screen turns black.

    • The screen brightness has been turned off in this case.

      The brightness can be increased again via the upper round button ("Button 1").
      (See also illustration in Tips or the user Operating Manual.)

    • For this you need, as described in the manual, a SD card. This is available in every electronics store.

      The card can be inserted into the SD card slot on the right side of your Condair Cube. After restarting the Condair Cube, the data will be recorded every 10sec.

      A .csv file is stored on the SD card for each new day.

      The .csv file can be opened and edited with Excel.

    • H: 8.5 cm
      W: 5.8 cm
      D: 3.2 cm

      The USB charging cable: 15cm
      (It has been specially designed so short for mobility, also to keep the cable always plugged in or to connect to the power bank or a computer easily and quickly.)


    Send us photos of your Condair Cube in action and win some Condair swag!

    Briefly describe where you used your Condair Cube. We would like to share them on our social media accounts to raise awareness about the indoor air quality! 

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