Air Quality

In a closed, occupied room, CO2 builds up unnoticed and signals that ventilation falls short. On the street, in industry or in a tunnel, particles and gases change through the day. Continuous measurement shows when to ventilate, when to act and whether the air is back to normal.

• CO2, temperature, relative humidity and pressure
• Particulate matter: PM1.0, PM2.5 and PM10
• Gases: CO, NO2, SO2, O3 and O2
• VOCs (TVOC) and formaldehyde
• Toxic and combustible gases in confined spaces

For a room: a CO2 meter with a display and memory, or wireless sensors that warn with color and sound and report to a base station. For the building: fixed wall or duct transmitters with analog or Modbus output. For outdoor air: stations with a solar panel, cellular or Wi-Fi and cloud access. For gases at work: portable detectors with a sampling pump and alarm, or multi-gas analyzers.