Aethair monitors
Aethair IAQ
Commercial Indoor Air Quality Monitor for Offices, Workplaces, and Occupied Buildings
Where it is used
Where Aethair IAQ Runs
The same monitor, in the buildings that need it. Each tile opens its solution page.
Offices and Commercial Buildings
Billy Penn Studios runs Aethair IAQ across 180,000 sq ft of adaptive-reuse tenant space in Philadelphia, with results on public dashboards for tenants and the community.
Schools and Education
Classroom and library air quality, with the Aethair Air Quality Index on display for staff and students.
Healthcare
Monitor patient and clinical areas without a pressure requirement, with continuous, time-stamped records. A monthly Aethair CMS-2567 report checks humidity, temperature, and air quality against ASHRAE 170 for the surveyor.
What you get from it
What You Get From Aethair IAQ
Every reading goes to the Aethair Cloud and appears in Environet. Each outcome below is a product you can read about.
Live data and alerts
Environet shows every device live and alerts the people you choose by email, SMS, and webhook, on a reading or its average over any window from 5 minutes to 30 days. Noesis fills in a dashboard, a report, or an alert from a plain-text request.
Compliance reports
Aethair Reports writes scheduled or on-demand reports, as PDF or secure link, from templates for Aethair Blue, WELL v2, cabin air (ISO 23875), and the CMS-2567 healthcare codebook (ASHRAE 170), or against your own limits, each on the average you define. See a sample report.
Dashboards and the app
Aethair Dashboards put live readings on screens, online or by QR code, and the Aethair App puts them on phones. Dashboards can be shared publicly: Billy Penn Studios publishes its readings to tenants and the community. See a live dashboard example.
Your data, stored until delivered
Aethair IAQ caches readings on the device until they are delivered, so a connectivity outage delays readings instead of dropping them, and raw readings are stored exactly as the device sent them. Every reading is encrypted in transit to the Aethair Cloud and platform access is role-based. Live and historical readings export as JSON or CSV through the Environet API (OpenAPI 3.2). You own your devices and data, can grant partners controlled access, and readings are kept for as long as you need them (at least two years after a project ends) and deleted only at your request.
Calibrated, with a certificate
Each Aethair IAQ ships with a Performance Certificate for its serial number. On the example certificate, CO₂, temperature, humidity, and total VOC are checked against reference devices (a Fluke 1620A for temperature and humidity, a ppbRAE 3000 for total VOC, a reference unit for CO₂), with the correlation (R 0.99 and above, R² beside it) and the p75, p90, and p95 errors. The PM2.5 and formaldehyde sensors are calibrated at the factory by their maker, Plantower, and checked by Aethair. Calibration uses NIST-traceable reference standards.
One account for every site
Every Aethair IAQ, at every site, sits in the same Environet account as Aethair PRO and Thiamis-connected sensors: one console, the same alerts, reports, and dashboards for every device.
What it measures
Built-In Sensors
| Parameter | Range | Resolution | What it measures |
|---|---|---|---|
| PM1µg/m³ | 0–500 µg/m³ | 1 µg/m³ | Submicron particulate ≤1 µm, the fraction that penetrates deepest into the lungs. Measured by 90° laser light-scattering, in µg/m³. |
| PM2.5µg/m³ | 0–500 µg/m³ | 1 µg/m³ | Fine particulate ≤2.5 µm, the headline health metric behind NAAQS and WHO limits. 90° laser light-scattering, µg/m³. |
| PM10µg/m³ | 0–500 µg/m³ | 1 µg/m³ | Coarse particulate ≤10 µm: dust, pollen, and road grit. Measured by 90° laser light-scattering, in µg/m³. |
| Total PM / Mass Conc.µg/m³ | — | — | Peak PM within the one-minute reporting window: the highest PM10 value the counter saw in that minute, µg/m³. |
| Particle Count (by size)particles≥0.3 µm, ≥0.5 µm, ≥1.0 µm, ≥2.5 µm, ≥5.0 µm, ≥10.0 µm | — | — | Raw particle counts in six optical size bins (≥0.3, ≥0.5, ≥1.0, ≥2.5, ≥5.0, and ≥10.0 µm) from the laser counter, used to derive the PM mass fractions. |
| Carbon Dioxide (CO₂)ppm | 400–5000 ppm | 1 ppm | Carbon dioxide by NDIR (non-dispersive infrared), the standard proxy for ventilation adequacy in occupied spaces. ppm. |
| VOC (Total)ppm | 0–1 ppm | 0.05 ppm | Total volatile organic compounds, isobutylene-referenced (also reported on an ethanol scale), as an indicator of chemical load and freshness. ppm. |
| Air Temperature°C / °F | 0–45 °C | 0.1 °C | Air temperature, reported in °C or °F. |
| Relative Humidity% | 15–75 % | 0.1 % | Relative humidity, %. |
| Barometric PressurehPa | 300–1100 hPa | — | Barometric pressure, hPa. |
| Dew Point°C / °F | — | — | Dew point (the temperature at which air becomes saturated), derived from temperature and humidity. °C or °F. |
| Heat Index°C / °F | — | — | Heat index (apparent temperature), derived from temperature and humidity. °C or °F. |
| Formaldehyde (CH₂O)mg/m³ | 0–1 mg/m³ | 0.001 mg/m³ | Formaldehyde, a hallmark indoor pollutant off-gassed by building materials, furnishings, and finishes. mg/m³. |
How it is built
Aethair IAQ Hardware
Sensor ranges and resolutions are in the table above. All other Aethair IAQ specifications are listed below.
General
| Input voltage | 5 VDC (micro-USB) |
|---|---|
| Power | 0.6 W |
| Operating temperature | 0–45 °C |
| Accelerometer | 16 g, 13-bit resolution |
| Dimensions (L×W×D) | 4.3 in (110 mm) × 2.6 in (66 mm) × 1.2 in (30 mm) |
| Weight | 0.4 lb (0.18 kg) |
| Certifications | CE, FCC |
| Particle sensor | Laser light scattering; counts reported in six cumulative bins from 0.3 µm, PM as mass ≤1, ≤2.5, and ≤10 µm (sheet size channels 0.3–1.0, 1.0–2.5, 2.5–10 µm); counting efficiency 98 % at ≥ 0.5 µm |
| Reporting | Sensors sampled every 2–5 s; a one-minute average (median for CO₂ and VOC) published every minute |
| Updates | Firmware and configuration over the air, from Environet |
Communications
| Cellular | 4G LTE / 3G / 2G |
|---|---|
| WiFi | 802.11 b/g |
| Bluetooth | Bluetooth 4.0 |
| Mesh | Zigbee |
| GPS | A-GPS |
| Antenna | Built-in (GPRS, 2G/3G/4G, Zigbee, Bluetooth) |
| SIM card | Built-in; cellular data included, no network fee |
Source: Aethair IAQ Technical Specifications (2nd generation, Rev. 1.0, August 2024).
Still deciding?
The Other Aethair Devices: Aethair PRO and Thiamis
Aethair PRO
Industrial monitor for indoor and outdoor sites. Built-in sensors cover the essentials, and hot-swappable gas sensor cartridges and a differential-pressure option add more.
13 built-in parameters (PM2.5, PM10, noise, temperature …), plus 19 swappable cartridges (H₂S, SO₂, NO₂, CO, O₃, CH₄ and more) in 2 gas sockets, 1 MultiSense socket, and 1 expansion socket
See Aethair PRO
Thiamis
A gateway that connects the third-party instruments you choose to the Aethair Platform.
RS-232, RS-485, SDI-12, and USB · 224 device models from 35 integrations
See Thiamis
Standards
Monitor for These Standards with Aethair IAQ
Guidance that references these measurements without setting a limit:
Article Library
Reading for Aethair IAQ Deployments
Guides to the indoor programs and standards Aethair IAQ is used for.
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Indoor Air Quality in Schools: Standards & Monitoring 2026
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Commercial Building IAQ Monitoring: ASHRAE 62.1 & WELL
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PM2.5 Exposure Limits & Monitoring: OSHA and NAAQS Standards
What are the OSHA and NAAQS exposure limits for PM2.5? Fine particulate thresholds explained, plus how continuous monitoring keeps workplaces compliant.
Questions
Aethair IAQ FAQ
How is Aethair IAQ different from a consumer air quality monitor?
How does Aethair IAQ support EHS and compliance programs?
Can Aethair IAQ feed our building management system?
How do I install Aethair IAQ in my building?
How is Aethair IAQ bought?
Bring Aethair IAQ Into Your Building
Schedule an Aethair IAQ DemoSee a sample report See a live dashboard example Commercial IAQ monitoring solution Case study: Billy Penn Studios Choosing between Aethair PRO, Aethair IAQ, and Thiamis
A 30-minute call: you tell us about your application, then we demo the solution for it.
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