# Device Classes and States

Devices are organized into modules by product type. Each page shows the methods and state attributes of each device class.

1. [Bulbs](./bulbs.md)
2. [Fans](fans.md)
3. [Humidifiers](humidifiers.md)
4. [Outlets](outlets.md)
5. [Purifiers](air_purifiers.md)
6. [Switches](switches.md)
7. [Thermostats](thermostats.md)
8. [Air Fryers](kitchen.md)

For a list of supported devices and their corresponding device classes, see the [Supported Devices](../supported_devices.md) page.