Discover the AirU

For Home

Air pollution is associated with a numerous adverse health effects including heart attacks, asthma lost work and school days loss of cognitive function, and premature mortality.

We took what used to be challenging and made it simple

Introducing the AirU 2.0

Built on a scalable platform, AirU devices are designed to adapt to meet your specific pollution measurement requirements. With its expandable circuit board, the AirU can be personalized to deliver highly accurate measurements of the pollutants you care about helping you gain insights to reduce your pollution exposure. 

Its lightweight, low-profile and ultra-low power consumption make the AirU an ideal choice for a discrete and effective solution to personal air quality monitoring.

How does it work?

AirU air quality monitors draw ambient air past a series of air sensors, and t he measurements are both uploaded to the TELLUS Cloud as well as written to its onboard SD card as a backup. 

Your data can be accessed remotely through your personal dashboard for further analysis.

Particulate Matter (PM2.5)
Highly respirable particles that cause asthma and adverse cardiac effects, and even promotes cancers.
Visible Dust & Pollen
(Dedicated PM10)
Vehicle Emissions (NO2)
Indicative of engine exhaust, vehicle traffic.
Ozone (O3)
Breathing ozone is like getting a sunburn on your lungs. Ozone is a strong oxidizing gas that causes asthma and asthma exacerbations as well as respiratory inflammation.
Relative Humidity (RH)
Barometric Pressure
Total Volatile Organic Compounds (TVOC)
Sum of all relevant organic compounds found in indoor air Volatile organic compounds can cause headaches and dizziness. Many VOCs are air toxics, and some are carcinogens.
Carbon Dioxide (CO2)
This is an important greenhouse gas and a key indicator of building ventilation.
Carbon Monoxide (CO)
This is a highly toxic product of incomplete combustion that can tragically cause dealth of residents . All homes should have a CO monitor and warning system.


Visualize your personal air quality and develop your own insights.

Your TELLUS dashboard can be accessed through a web browser or through the TELLUS app. Simply log in and add your sensors to begin monitoring the air quality in and around your home. Download raw measurements, compare measurements from different timelines, and visualize pollution events.

Why is it important to monitor my own air quality?

Listen to our Cheif Science Officer, Kerry Kelly, discuss the importance of monitoring your own air quality.

Several challenges complicate efforts to develop national-level indicators of outdoor air quality exposure and effects. For example, ambient concentration data do not quantify individual exposures, because ambient air monitoring equipment measures air quality at fixed outdoor locations, while people breathe air in multiple indoor and outdoor settings during a typical day.

Actual human exposure to air pollution can be measured with personal monitoring devices, which sample the air that individuals breathe as they move through different microenvironments.


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Know when a pollution event is taking place.

Almost the entire global population (99%) breathes air that exceeds WHO air quality limits, and threatens their health. A record number of over 6000 cities in 117 countries are now monitoring air quality, but the people living in them are still breathing unhealthy levels of fine particulate matter and nitrogen dioxide.


Enjoy peace of mind knowing the air quality in your home.

In developed countries, around 80% of time is spent indoors, meaning indoor air pollution may be a better proxy for personal exposure. Indoor air pollution from outdoor sources may occur due to infiltration of pollution from pollution events such as wildfire smoke, fireworks, and vehicular traffic.

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