Why Air Quality Matters
Each day, we consume roughly 0.2 kg of food, drink less than 2 litres of water, and breathe approximately 10,000 litres of air [Nazaroff 2018]. Yet, while most people would refuse a single glass of dirty water, 99% of the world’s population breathes air polluted beyond current WHO guideline limits [WHO 2021].
Annual deaths from ambient and household air pollution exposure
Of total air pollution exposure happens indoors
Of the world's population lives where air quality exceeds guidelines
What we offer
Everything you need for professional air quality monitoring
View live sensor data with minimal latency using MQTT protocol and time-series database
JWT authentication, encrypted connections, and role-based access control for your data
Browser-based firmware installation and WiFi configuration — no software required
TimescaleDB-powered time-series analysis with automatic compression and retention
View all sensors on an interactive map with real-time data popups
Build your own air quality sensor for €87–118 using ESP32, PM sensors, and 3D-printed enclosures
Step by step
From hardware to data visualisation in four simple steps
Assemble a DIY sensor using our 3D-printable enclosure, ESP32 microcontroller, and affordable sensors (PM, temperature, humidity). Total cost: ~€87–118.
View hardware guide →Download pre-built firmware and flash it to your device using your web browser. No software installation required — works directly via WebUSB.
Firmware installation →Connect to the device's WiFi, configure your network credentials, and register using a one-time key from your dashboard. Fully automated process.
Registration guide →View real-time and historical data on interactive charts and maps. Explore air quality patterns across multiple time ranges.
Open dashboard →Who it's for
From homes to research facilities — monitor air quality anywhere
Monitor indoor air quality and understand how activities affect your home environment
Ensure healthy classroom environments and teach students about environmental science
Create neighborhood air quality networks and advocate for environmental improvements
Collect environmental data for scientific studies with production-ready infrastructure
Assess and improve workspace environmental quality for employee health and productivity
Track greenhouse conditions and optimise growing environments for better yields
Who we are
ParticularMatter is a comprehensive open-source IoT platform designed to make air quality monitoring accessible, affordable, and scientifically rigorous. While 90% of air pollution exposure occurs indoors, we lack adequate tools to measure and understand this hidden threat.
Our platform combines DIY sensor hardware with production-ready cloud infrastructure, providing researchers, educators, and communities with enterprise-grade monitoring capabilities at a fraction of traditional costs.
Built entirely on open-source technologies and licensed under MIT, ParticularMatter embodies the principle that environmental data should be accessible to everyone.
EU Marie Skłodowska-Curie Actions — PIONEER
EU Horizon Innovation Action — healthRiskADAPT
Get in touch
Get involved
Join researchers, educators, and environmental enthusiasts using ParticularMatter to understand and improve air quality