Air Quality Monitor

The Zephyr® is an award-winning compact, indicative ambient air quality monitor that accurately measures harmful gases and particle matter. 

Zephyr® sensors provide detailed air quality measurements in real-time to help identify pollution hotspots at a localised level such as busy road junctions. Extensive networks can be easily deployed for city-wide pollution data used to aid the development of smarter and cleaner towns and cities.


Regional Winner of the Environmental Award 

Federation of Small Businesses 2020


Winner of 'Design Team of the Year' 

British Engineering Excellence Awards 2019



How it Works

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Zephyr® Subscription

We offer an all inclusive pollution monitoring subscription service for business including all hardware, servicing and data access.

Zephyr® Rental

Short-term, flexible air quality monitoring project? Take a look at our new Zephyr® rental service available in the UK only. 

Air Quality Data for Whole Cities

Simply deploy a network of Zephyr® monitors across your city as a cost effective way of identifying pollution hotpots and trends.

Static Zephyr® deployments in Coventry City Centre | Coventry City Council, 2019

Replaceable Cartridge System

All Zephyr® monitors operate on a replaceable cartridge system. Options include either a standard or enhanced cartridge depending on requirements.


As part of our ongoing service pack we replace cartridges as required to maintain sensitivity and accuracy of measurements. 

Active Sampling

The Zephyr® is designed to allow for an active refresh of air within the cartridge for a true and accurate insight into ambient air quality. 

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Mobile & 

Static Use

All monitors can be used as a mobile or static device. Install the Zephyr rapidly onto a post, vehicle or even a backpack, and the in-built GPS will provide accurate positional information for each measurement.

Sensor Performance

We calibrate every Zephyr® air quality monitor prior to dispatch and our calibration performance is tested against reference standard analysers. Following successful calibration we provide you with a calibration certificate for your Zephyr®


Air Quality Web App

View, analyse and download your measured Zephyr® data in the newly designed, user-friendly MyAir® air quality web app.​

Featuring first-to-market innovations including a global air quality model, air quality management areas (AQMAs), source apportionment, forecasting and DEFRA air quality reference data free of charge.

Comprehensive API

Your Zephyr® air quality data can be accessed directly via our API in a range of formats including json and csv.  


In addition, our Zephyr® web portal allows you to interact with data from all your deployed Zephyrs easily and intuitively.