Be aware of your air.

From wildfire smoke to workplace safety, our monitors provide real-time insights and alerts to help you protect your health and environment.

Advanced, Custom Air Quality Monitor

AirU Pro

A customizable air quality monitor for anyone ranging from your home to large-scale and industrial use. Get real-time data and precise measurements for any environment.

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What pollutants can the AirU Pro monitor?

With a fully equipped AirU Pro, you can monitor all these pollutants. Wind, temperature, and humidity are also available.

Scientific Name	Common Name	Common Sources
PM1	Ultrafine Particles	Microorganisms, mineral dust, secondary aerosols, industrial emissions
PM2.5	Fine Particles	Vehicle emissions, combustion byproducts, wildfire smoke, industrial emissions
PM10	Coarse Particles	Pollen, road dust, construction dust, silica dust, desert dust.
NO2	Nitrogen Dioxide	Vehicle emissions, power plants, industrial processes
O3	Ozone	Vehicle emissions, industrial emissions, photochemical reactions
CO	Carbon Monoxide	Vehicle emissions, wildfires, residential heating, industrial processes
H2S	Hydrogen Sulfide	Natural gas extraction, wastewater treatment, volcanic activity
SO2	Sulfur Dioxide	Coal combustion, metal smelting, industrial processes
CO2	Carbon Dioxide	Fossil fuel combustion, deforestation, industrial activities, respiration
CH2O	Formaldehyde	Building materials, tobacco smoke, combustion processes
VOC	Volatile Organic Compounds	Paints, solvents, vehicle emissions, industrial activities

Base-level Air Monitor

AirU+

The AirU+ is a compact, single-pollutant monitor designed to track PM2.5, the most common air pollutant that impacts health. Ideal for personal use or small-scale applications, it provides reliable, real-time data for cleaner air.

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Trusted by experts. Backed by science.

TELLUS provides air quality monitors and software that deliver real-time, reliable data, helping you make decisions to improve air quality and protect health.