3Cs visualization

Visualizing Three Cs situations helps you to reassure your customers and build trust

Challenges in preventing the spread of infectious diseasesMeasures to address the Three Cs

Avoiding the Three Cs is widely known as important to prevent the spread of infectious diseases. Various countermeasures addressing the three Cs are being taken in facilities and stores. However, there has been no way for customers to easily know the standards of those countermeasures or the circumstances, such as what standards are used for ventilation.

Confined and Enclosed
Confined and Enclosed spaces with poor ventilation
Crowded places with many people nearby
Close-contact settings such as close-range conversations

Value provided by Asahi KaseiWhat is the 3Cs visualization solution?

Asahi Kasei provides the 3Cs visualization solution that uses its unique technologies to visualize what measures are being taken to address the three Cs and how they are being implemented. A smart device can be used to access the data from remote locations, and it can be utilized in diverse situations.


Visualizing Measures for Enclosed Spaces

Measurement of CO2 Concentration

  • Ventilation to keep CO2 concentration below 1,000ppm

Our unique sensors measure CO2 concentration as an indicator of ventilation, showing when to ventilate. It objectively determines whether ventilation is adequate.

*Act on Maintenance of Sanitation in Buildings, Ministry of Health, Labour and Welfare

Ventilation visualizing by CO2 concentration is effective
for preventing infection from aerosol

Gas like aerosols are visualized in this video.
It shows both aerosols and CO2 concentration decrease through ventilation.


App version

Learn more



  • Connecting a single sensor
  • CO2 concentration display
  • Time display

PRO edition
(Additional functions)

  • Multiple concurrent connections to sensors
  • Switching sensor on display
  • Changing display mode
  • Alert function
  • Humidity display
・Visualizing how the space is ventilated
・Ventilation management at space where you worry about

Cloud version

Learn more



  • CO2 concentration, humidity display
    (data can be displayed on floor map)
  • Multiple sensors managed by one smart device
  • CO2 concentration log display in graph
  • Alert function
・Helping operation at event halls to eliminate overcrowding.
・Exhibit new precaution measures to visitors


App version 3Cs View sensor Please contact us from the form.
Application Standard 0 JPY / month
PRO Please contact us from the form.
Cloud version We will offer ideal plan according to your facilities.
Please contact via "Contact form"

Product specification

3Cs View sensor

Dimentions 67mm × 37mm × 36 mm
Communication Bluetooth Low Energy
Operation range 0–35°C, 5-85% RH
Storage temperature 0~55℃
Power supply USB micro-B 5.0V/1A or LiPo battery
App supported OS iOS 14.0+

*Japanese version only.

CO2 (Carbon Dioxide) Operating principle Non-dispersive infrared
Measurement range 400–5,000ppm
Accuracy ±30 ppm ±3% of reading
Temperature Measurement range 0-80℃
Accuracy ±0.2℃
Humidity Measurement range 0-100%RH
Accuracy ±2%

*Specification is referenced in sensor device only

New utilization on live video


Visualizing Measures for Crowded Places/Close-Contact Settings

People are shown in silhouette outline to protect privacy

  • Visualization of social distancing
  • Visualization of non-face-to-face contact
  • Displaying people in line-drawing to protect privacy

Our new live camera enables users to see from remote locations if physical distancing measures ensuring one meter or more between people are in place and that people are not facing each other, while protecting privacy by only displaying the outlines of people.

*For those who are interested in this solution, please contact via inquiry form below.


Where can we use this service?
It can be used in a wide range of places, such as restaurants, large commercial premises, sightseeing/accommodation facilities, offices, and public institutions.
Do you have any materials about product specifications and services?
Yes. Please contact us via the inquiry form below.
I want to install the system. How do I order it?
Please contact us via the form below. Our staff will contact you regarding installation.

Contact Us

We only accept contracts from businesses.

Contact Us