Commercial Indoor Air Quality Monitoring

Indoor air quality monitoring is the continuous measurement of pollutants and conditions inside occupied spaces: PM1, PM2.5, PM10, CO₂, VOCs, formaldehyde, temperature, humidity, and pressure. A commercial monitor gives real-time visibility of ventilation performance, HVAC behavior, and occupant exposure, which is what compliance, ESG reporting, and tenant questions all need.

Aethair IAQ measures nine parameters: particulate matter (PM1, PM2.5, PM10), carbon dioxide, total VOCs, formaldehyde, temperature, humidity, and barometric pressure: the pollutants and conditions that matter most to occupant health and to building compliance. Aethair PRO covers the same indoor panel and adds gas sensor cartridges for anything beyond it.

WELL v2 and ASHRAE Standard 62.1 both ask for evidence that ventilation and indoor air quality meet defined thresholds. WELL v2 sets PM2.5 at 15 µg/m³ and formaldehyde at 50 µg/m³, and accepts sensor data showing CO₂ at or below 900 ppm as one way to meet its ventilation precondition. Continuous monitoring produces time-stamped, calibrated data showing whether the building met them between on-site performance tests, and Aethair Reports has a WELL v2 template that applies those limits to the readings. Each parameter and its reference thresholds are set out in our guide to indoor air quality monitoring parameters.

Yes. Indoor air quality data is increasingly expected in real-estate ESG disclosures, such as GRESB, which scores indoor environmental quality. The readings are continuous and audit-ready, and a report can be written against an internal ESG target as a custom standard rather than assembled by hand.

Indoor monitoring measures the spaces people occupy, where ventilation, furnishings, occupancy, and HVAC operation drive the result. Outdoor monitoring measures ambient conditions. The two meet during events such as wildfire smoke, when outdoor pollution infiltrates the building, which is exactly when indoor readings tell you what people were actually exposed to.

Aethair IAQ is built for occupied indoor spaces and measures the nine indoor parameters from internal sensors. Aethair PRO is the industrial monitor: the same particulate and climate sensors plus hot-swappable gas sensor cartridges, rated for outdoor, perimeter, and cabin deployments. A building that also monitors a perimeter or a plant room runs both, in one account.

Yes. Thiamis connects third-party instruments over RS-232, RS-485, SDI-12, and USB and reports them into the same account, so existing equipment appears next to Aethair monitors in Environet with the same alerts and reports.

PM2.5, CO₂, total VOCs, temperature, and humidity form the core: particles for health, CO₂ for ventilation, VOCs for chemical load, and temperature and humidity for comfort and mold risk. Formaldehyde and radon are common additions where new furnishings or ground-level geology make them relevant.

CO₂ is not itself harmful at indoor building levels; it is the best practical proxy for ventilation. High CO₂ indicates an under-ventilated space, where other pollutants, odors, and exhaled aerosols are likely accumulating. That is why it anchors the indoor panel despite being harmless in its own right.

Usually not. A single built-in monitor can measure PM2.5, PM10, CO₂, VOCs, and formaldehyde together, unlike an outdoor regulatory station that must combine instruments. Multiple units are used to cover multiple rooms or ventilation zones, not to cover multiple parameters.

Deploy a fixed indoor monitor in the breathing zone of each ventilation zone, covering the core panel and feeding dashboards or the building management system. Use the configurator to confirm your configuration and add radon or other parameters your building needs.