Never Breathe Polluted Air Again

Professional Indoor Air Quality Monitor

Comprehensive real-time monitoring of PM2.5, PM10, CO2, CO, NO2, temperature, humidity, and more. Built-in display, web interface, and seamless Home Assistant integration.

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Breathe Safe Device
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Sensors
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Hour History
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Powerful Features

Everything you need for comprehensive indoor air quality monitoring

Real-Time Monitoring

Continuous monitoring with 5-minute sampling intervals. View live data on the built-in OLED display or web interface.

Smart Alarms

Configurable thresholds for all sensors with visual and audible alarms. Dismiss alerts with a simple button press.

Built-in Display

OLED display showing real-time sensor data, charts, and visualizations. Quick glance monitoring without opening an app.

Web Interface

Full-featured web dashboard with configuration, live charts, historical data, system info, and firmware updates.

Home Assistant

Seamless MQTT integration with Home Assistant. All sensors automatically available for automation and dashboards.

Historical Data

6-hour circular buffer with 5-minute intervals. Track trends and patterns to optimize your indoor air quality.

Comprehensive Sensor Array

Professional-grade sensors for accurate air quality monitoring

BME680
Temperature, Humidity, Pressure, IAQ
HPMA115X
PM2.5, PM10 (µg/m³)
T6615X
CO2 (ppm)
ZE07
CO (ppm)
MICS4514
CO, NO2 (ppm, ppb)
DS18B20
External Temp (3 sensors)

See Breathe Safe in Action

Watch our demo video to see all the features in action

Watch how Breathe Safe monitors your indoor air quality in real-time

Web Interface Showcase

Beautiful, intuitive interface for monitoring and configuration

Smart Home Integration

Seamlessly integrate with your existing smart home ecosystem

Home Assistant Ready

Full MQTT integration with Home Assistant. All 15+ sensor parameters are automatically available for:

  • Automated triggers and alerts
  • Custom dashboards and visualizations
  • Historical data logging
  • Integration with other smart devices

MQTT Protocol

Industry-standard MQTT protocol ensures compatibility with:

  • Home Assistant
  • OpenHAB
  • Node-RED
  • Any MQTT-compatible system

3-minute update frequency JSON payload format Auto-discovery ready

Technical Specifications

Hardware

  • MCU: ESP32-WROOM-32D
  • Display: OLED 128x64
  • Connectivity: WiFi 802.11 b/g/n
  • Interfaces: I2C, UART, 1-Wire, ADC
  • Power: 5V USB-C

Software

  • Framework: ESP-IDF / FreeRTOS
  • Web Server: Built-in HTTP server
  • Protocols: MQTT, HTTP, SNTP
  • Storage: 6-hour circular buffer
  • Updates: OTA firmware updates

Ready to Breathe Safe?

Join us on our journey to better indoor air quality