Know your air.Protect what matters.
HazeGuard helps you understand estimated air-quality conditions for your location and turn environmental data into practical safety decisions.
HazeGuard
Understand your air.
Select your location to receive the latest available modelled air-quality estimate and practical safety guidance.
Air quality
Estimated
Guidance
Practical
HazeGuard provides modelled estimates, not direct measurements from a physical monitoring station at your exact location.
Location-based
Uses your selected coordinates
Modelled data
Atmospheric air-quality estimates
Transparent
Clear about what the data means
Safety focused
Designed for informed decisions
Why HazeGuard
Air-quality information should help people make decisions.
Environmental data can be difficult to interpret. HazeGuard simplifies modelled information into understandable conditions and practical precautions while clearly explaining that the values are estimates rather than direct sensor measurements.
Know Your Location
Use your current location to identify the area associated with the available air-quality estimate.
Understand the Estimate
Review estimated AQI, PM2.5 and PM10 values in a simpler format that is easier to understand.
Take Practical Action
Receive safety guidance based on the estimated condition and your planned outdoor exposure.
How It Works
From location to practical guidance.
HazeGuard keeps the experience simple: identify where you are, retrieve the available modelled data, understand the conditions, then decide how to respond.
01
Choose your location
Use your device location to identify the area you want to check.
02
Get an estimate
HazeGuard retrieves available modelled air-quality information for your selected coordinates.
03
Understand conditions
Review estimated AQI and particulate levels in an easy-to-understand format.
04
Plan your response
Answer a few questions about going outside and receive practical safety guidance.
Data Source
Where does HazeGuard get its air-quality data?
HazeGuard uses the Open-Meteo Air Quality API to retrieve location-based air-quality information. Open-Meteo provides access to modelled atmospheric data from the Copernicus Atmosphere Monitoring Service (CAMS), operated by ECMWF.
This means the values you see are modelled estimates, not direct readings from a physical air-quality sensor at your exact location.
View Open-Meteo Air Quality APIModelled atmospheric information
Open-Meteo’s Air Quality service is based on CAMS European and CAMS Global atmospheric composition forecasts. These models combine satellite observations, surface data, and advanced atmospheric chemistry modelling.
Provider
Open-Meteo
Underlying model
CAMS (Copernicus)
Key indicators
PM2.5, PM10, US AQI
Data type
Modelled estimate
Important distinction
A HazeGuard result should be understood as a regional estimate. It can differ from readings collected by local government stations or physical sensors at a specific address.
Source: Open-Meteo Air Quality API documentation. HazeGuard does not operate or claim to operate a physical air-quality monitoring station.
HazeGuard Safety
When conditions change, know what your next step could be.
HazeGuard connects estimated air-quality conditions with practical precautions. The goal is not to alarm you, but to help you make more informed decisions about outdoor exposure.
View Protection GuideMonitor
Keep track of estimated air-quality conditions for your location.
Prepare
Understand practical ways to reduce unnecessary exposure.
Protect
Take appropriate precautions when conditions become less favorable.
Stay Aware
Recheck conditions when weather or air-quality conditions change.
Data transparency
An estimate should always be presented as an estimate.
HazeGuard uses modelled air-quality information from Open-Meteo (powered by CAMS) to provide location-based estimates. These estimates are useful for understanding broader atmospheric conditions, but they should not be treated as direct measurements from a physical monitoring station at your exact location.
Start with your location
Know the air before you go.
Check the estimated air-quality conditions for your location and discover practical precautions based on your situation.
Check My AirHazeGuard provides modelled air-quality estimates and general safety information. It does not replace official public-health alerts, professional medical advice, or measurements from local monitoring stations.