We've had makeover! Tether Airborne Index was previously known as COVIDCare

Airborne Index for Aged Care
Tether’s CO2 monitoring solution to managing airborne virus transmission risk in aged care facilities. (airborne virus includes COVID, flu, pertussis (whooping cough) and RSV - respiratory syncytial virus.)
How do we make sure our staff and residents feel safe and secure? By showing them
Airborne viruses (like the flu and Covid-19) can be spread by breathing in air exhaled by another person. High CO2 levels in the environment means a higher % of the air you breathe is shared with other people which leads to a higher exposure risk.

Airborne viruses are spread in tiny, invisible droplets called aerosols that are expelled when infected people exhale

The more people in a closed space, the greater the risk of infection

Making sure spaces are well-ventilated is key to reducing the spread of the virus

CO2 monitors show which areas need better ventilation
"If you are sharing air, the lower the CO2, the lower risk of infection.”
Jose L. Jimenez. Exhaled CO2 as a COVID-19 Infection Risk Proxy for Different Indoor Environments and Activities. Environmental Science & Technology Letters, 2021

How it works

Scan to activate and stick the monitoring device to the wall of your premises

Your device will scan the air in real-time, tracking the CO2 levels in the space

You will be alerted well ahead of time if CO2 is rising, allowing you to increase ventilation and reduce the transmission risk

Your customers feel safe and happy knowing and being able to see in real-time they are at a low risk
Show you care
Reduce the anxiety of communal living and welcoming visitors.
Tether’s Airborne Index CO2 monitors offer live data, allowing everyone to make educated, safe choices.
“Research confirms value of measuring carbon dioxide to estimate infection risk” Read more





A smart layer of added protection
After vaccination, CO2 monitoring is fast becoming the global standard for managing airborne virus transmission risk in enclosed spaces.
Airborne Index allows you to manage that risk smartly: software integration delivers data that makes tracking and preempting infection even easier, allowing you to be proactive in your risk response.



Knowledge is power
Data is recorded and stored to be able to track trends and preempt disruption.
Keeping CO2 levels down mitigates the risk of seasonal illness.
We may not be able to control airborne viruses, but we can go a long way to preventing their spread.
Power - at your fingertips

Install in seconds
Order the monitor, install the app.
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DIY or we can get you set up
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No wifi is required
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Mains - powered or 1 year battery life


Get a Quote

“People infected with coronavirus can spread it around a room in tiny airborne droplets called "aerosols" when they breathe out, speak, shout or sing.
These aerosols build up indoors, especially when a place is crowded or there is poor ventilation, and the longer you are surrounded by them, the more chance you have of breathing them in.
Unfortunately, the aerosols are so small you can't see them, which is where the CO2 meters come in.
In addition to aerosols, we also breathe out CO2 — a byproduct of respiration — which builds up in the air unless a space is ventilated.
And this CO2 is easier to measure than the aerosols or virus particles themselves.
So the level of CO2 in a space can be used as proxy for the possible risk of exposure to coronavirus.”

Tether Airborne Index for Businesses & Schools
Learn how Airborne Index helps businesses & schools