---
title: Air Quality
description: Instructions on how to add air quality sensors with Home Assistant
ha_release: 0.85
ha_domain: air_quality
ha_quality_scale: internal
ha_category: []
ha_codeowners:
  - '@home-assistant/core'
ha_integration_type: entity
---

The `air_quality` base platform allows other integrations to process information about air quality and pollution details. It is used by integrations that provide an `air_quality` sensor - you can find those under the `health` [integrations](/integrations/#health).

The platforms cover the following levels (if they are available):

- The particulate matter 0.1 (<= 0.1 μm) level.
- The particulate matter 2.5 (<= 2.5 μm) level.
- The particulate matter 10 (<= 10 μm) level.
- The Air Quality Index (AQI).
- The O3 (ozone) level.
- The CO (carbon monoxide) level.
- The CO2 (carbon dioxide) level.
- The SO2 (sulphur dioxide) level.
- The N2O (nitrogen oxide) level.
- The NO (nitrogen monoxide) level.
- The NO2 (nitrogen dioxide) level.