Apollo Automation AIR-1 Air Quality For Home Assistant - with CO2 sensor

The Apollo AIR-1 is a compact yet powerful air quality sensor designed for full local control with no cloud dependency. Measuring just 61 x 61 x 30 mm, this device uses Wi-Fi and ESPHome to integrate seamlessly into Home Assistant, and it also works with platforms like Homey, Hubitat, and HomeSeer. At its core is the SEN55 sensor, which tracks PM1, PM2.5, PM4, PM10, VOCs, NOx, temperature, and humidity. Optional modules expand its capability with CO₂ (SCD40) and barometric pressure (DPS310). With its long sensor lifespan and fast response times, it's perfect for monitoring environments like 3D printer enclosures or living spaces affected by paint fumes or air pollution.

Powered by USB-C and supporting Bluetooth tracking via ESP32-C3, the AIR-1 can detect presence through MAC addresses, making it useful for finding lost devices or tracking people and pets indoors. RGB LEDs offer visual alerts based on sensor readings, and an expansion connector allows for future upgrades. Open-source firmware and CAD files are freely available, giving you the freedom to modify or enhance the design. Backed by a strong community and active developer support, the AIR-1 is more than just a sensor—it's a modular, transparent, and privacy-respecting piece of your smart home.