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How does room monitoring reduce the risk of contracting the coronavirus?

So far it was common knowledge that corona viruses are spread via droplet infections, among other things.

The Robert Koch Institute recently updated the information on the transmission routes of the virus to the effect that - especially in closed indoor spaces - airborne transmission via aerosols is also relevant1. Aerosols are tiny droplets, a fine mixture of solid and liquid particles less than five micrometers in size. When breathing and speaking, but even more so when coughing, sneezing, screaming and singing, aerosols are excreted2.

Aerosols float in the air for a certain period of time. According to the latest scientific research, if a person is infected with the coronavirus, the aerosols contain virus particles that remain infectious while they are in the air.

Attention: In closed rooms a range of the aerosols of more than 8 meters and a residence time of up to 90 minutes has been proven.3 The Helmholtz Institute for Infection Research published the first results of a study on the outbreak in the Tönnies meat factory in July. According to this, an employee transmitted the virus to several people in May, within a radius of more than eight meters. 4

This means that protection from the minimum distance and from wearing masks can no longer be guaranteed 100%.

The consequence: visitors, guests and employees will rethink staying in closed rooms even more than has been the case up to now!

With KARMA you can actively show your visitors, guests and employees that you take this topic seriously and deal with it - through well thought-out, digital room monitoring:

  1. CO2 value:
    Since the measured CO2 value is a good indicator of the fresh air supply, the connection between CO2 and the probability of corona transmission can be established. A KARMA CO2 sensor can record the existing CO2 value in the air very precisely. A low CO2 value - fresh air - dilutes the density of the aerosols. The aerosol concentration in the room and thus the risk of infection in the room decreases.5
    Therefore: the higher the CO2 value, the more higher the risk of infection

  2. Humidity:
    Immediately after exhaling, aerosol particles begin to dry out. The drier the ambient air - i.e. the lower the humidity - the faster and stronger this drying effect is. As the droplets dry out, they decrease in size, become lighter and therefore float longer in the air. The pathogens contained are preserved and remain infectious. Scientific studies show that the survival time of viruses in the air is lowest from a humidity of 40%. 6
    Therefore: the lower the humidity, the higher the risk of infection.


  3. Temperature:
    Overall, the virus shows a high temperature resistance. In principle, a low level of humidity combined with low temperatures should allow the virus to survive as long as possible on surfaces and in the air. According to the Robert Koch Institute, the coronavirus is inactivated at higher temperatures in combination with increased humidity. But not at low temperatures. 7
    Therefore: The lower the temperature, the higher the risk of infection.

KARMA -
The system for monitoring the room values ​​in your buildings.

With KARMA, we provide our customers with an "all-in-one platform" that monitors essential room values ​​relevant to the spread of the coronavirus in real time. The monitoring of these room values ​​(e.g. CO2 measurement) is the basis for the early detection of the risk of a concentration of the coronavirus via aerosols.

The basic requirement applies to all of the measures described above: Permanent measurement and control of the values. In order to keep the risk of infection with corona viruses as low as possible, it is important to ensure optimal humidity and CO2 concentration. If values ​​rise in critical areas, the building operator can react seamlessly, e.g. by activating air filter systems. KARMA records the values ​​permanently and in real time using wireless sensors (including CO2 sensors). Individual limit values ​​are checked using a traffic light system from KARMA.

The limit values ​​are defined according to a traffic light system:

If the room values ​​are in the green range, the probability of the coronavirus being transmitted via aerosols in the air is much lower.


Push notifications

KARMA not only offers customers the opportunity to monitor all relevant values ​​in the background, but also informs those responsible via Push notification when reaching or exceeding limit values.


Use social media channels to communicate your measures.

With KARMA, show your customers, guests and visitors that you are trying to reduce the likelihood of corona infection chains to a minimum and actively monitor the air quality - put our badge online on your website and social media channels and offline in your rooms.


KARMA - a perfect system

KARMA is a system that has been tried and tested for many years and offers the interaction of sensors, backend and software. With KARMA, the building operator now has real-time monitoring for corona-relevant room values. The building operator can react immediately when limit values ​​are reached.

Use KARMA and show your customers, employees, guests or students that you can keep an eye on the room climate at all times.

Don't give Corona a chance - ensure a good KARMA in your building!


1https: //www.rki.de/DE/Content / ...2https: //www.rki.de/DE/Content / ...3https: //www.nejm.org/doi/full / ...4https: //www.helmholtz-hzi.de/d ...5https: //www.thelancet.com/jour ...6https: //www.researchgate.net/p ...7https: //www.rki.de/DE/Content / ...