Friday, August 22, 2025

Know What Your Air Quality Really Is – AirGradient Now Works with Home Assistant

AirGradient has joined the Works with Home Assistant program, bringing its line of indoor and outdoor air quality monitors into a growing group of supported smart home devices. AirGradient is based in Thailand and is the first partner in the program that focuses on both indoor and outdoor air quality monitoring. The company is known for its open source approach and its work with local and global air quality projects, including partnerships with organizations such as UNICEF.

AirGradient began by developing air quality monitors for their local community in Thailand and has since expanded their reach. They support projects both in their home country and worldwide by donating monitors to schools and working with non-governmental groups. The monitors help students and communities understand the air they breathe and take steps to improve it. AirGradient's commitment to open source hardware and software aligns with the goals of Home Assistant, which also values local control and privacy. Both companies allow for community contributions and support do-it-yourself options, as AirGradient sells their monitors both fully assembled and as kits that users can build themselves.

The monitors supplied by AirGradient can be fully integrated into the Home Assistant system using a local Wi-Fi connection. This integration has been tested and rated at the highest level on Home Assistant's quality scale. There is no need for a cloud connection for these devices to work, which means data stays within the user's home network. Users can choose to share their air quality data, which helps build a public map that shows air quality readings from around the world. This shared data can be useful for researchers, students, or anyone interested in local air conditions.

AirGradient has two main products certified with the Works with Home Assistant program: the AirGradient One for indoor use and the AirGradient Open Air for outdoor use. Both devices measure several air quality factors, including carbon dioxide, volatile organic compounds, nitrogen oxides, particulate matter, temperature, and humidity. Each device features a display with detailed readings and color-coded indicators for quick checks. The company's science team, which includes atmospheric chemists and public health experts, works to make sure each monitor is accurate. Fully assembled monitors are tested in controlled environments before being shipped.

The company also focuses on repairability and sustainability. Each kit includes a screwdriver for easy repairs, so users can replace sensors or update firmware themselves. AirGradient donates at least one percent of annual sales to non-profit groups and direct community support. They invite anyone working on a local air quality project who could benefit from open source monitors to contact them for possible support.

The Works with Home Assistant certification is more than just a label. All certified devices are tested in-house using standard Home Assistant hubs and networks to confirm that they work as expected. Devices must work locally, have full support within Home Assistant, and the manufacturer must commit to long-term support. This certification is managed by the Open Home Foundation and funded in part by Home Assistant Cloud subscribers.

AirGradient's addition to the Works with Home Assistant program offers more choice for people looking to monitor and improve their home's air quality. Their open source approach, focus on repairability, and support for community projects add value for users interested in privacy, sustainability, and local data control. As more people share their air quality readings, the public map grows and becomes a useful tool for understanding air quality on a wider scale.

View theoriginal press release.

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