# AirQualityLevel

    enum AirQualityLevel

The air quality level.
- `


  ### [unspecified](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/ExtendedAirQualityTrait/AirQualityLevel#/s:15GoogleHomeTypes0A0O23ExtendedAirQualityTraitV0eF5LevelO11unspecifiedyA2GmF)


  ` The air quality is unknown.

  #### Declaration

  Swift

      case unspecified

- `


  ### [good](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/ExtendedAirQualityTrait/AirQualityLevel#/s:15GoogleHomeTypes0A0O23ExtendedAirQualityTraitV0eF5LevelO4goodyA2GmF)


  ` The air quality is good.

  #### Declaration

  Swift

      case good

- `


  ### [fair](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/ExtendedAirQualityTrait/AirQualityLevel#/s:15GoogleHomeTypes0A0O23ExtendedAirQualityTraitV0eF5LevelO4fairyA2GmF)


  ` The air quality is fair.

  #### Declaration

  Swift

      case fair

- `


  ### [moderate](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/ExtendedAirQualityTrait/AirQualityLevel#/s:15GoogleHomeTypes0A0O23ExtendedAirQualityTraitV0eF5LevelO8moderateyA2GmF)


  ` The air quality is moderate.

  #### Declaration

  Swift

      case moderate

- `


  ### [poor](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/ExtendedAirQualityTrait/AirQualityLevel#/s:15GoogleHomeTypes0A0O23ExtendedAirQualityTraitV0eF5LevelO4pooryA2GmF)


  ` The air quality is poor.

  #### Declaration

  Swift

      case poor

- `


  ### [veryPoor](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/ExtendedAirQualityTrait/AirQualityLevel#/s:15GoogleHomeTypes0A0O23ExtendedAirQualityTraitV0eF5LevelO8veryPooryA2GmF)


  ` The air quality is very poor.

  #### Declaration

  Swift

      case veryPoor

- `


  ### [extremelyPoor](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/ExtendedAirQualityTrait/AirQualityLevel#/s:15GoogleHomeTypes0A0O23ExtendedAirQualityTraitV0eF5LevelO13extremelyPooryA2GmF)


  ` The air quality is extremely poor.

  #### Declaration

  Swift

      case extremelyPoor

- `


  ### [init(rawValue:)](https://developers.home.google.com/reference/swift/GoogleHomeTypes/Enums/Google/ExtendedAirQualityTrait/AirQualityLevel#/s:15GoogleHomeTypes0A0O23ExtendedAirQualityTraitV0eF5LevelO8rawValueAGSgs6UInt64V_tcfc)


  ` Creates a new instance with the specified raw value.

  If there is no value of the type that corresponds with the specified raw
  value, this initializer returns `nil`. For example:

      enum PaperSize: String {
          case A4, A5, Letter, Legal
      }

      print(PaperSize(rawValue: "Legal"))
      // Prints "Optional(PaperSize.Legal)"

      print(PaperSize(rawValue: "Tabloid"))
      // Prints "nil"

  #### Declaration

  Swift

      init?(rawValue: UInt64)

  #### Parameters

  |---|---|
  | ` rawValue ` | The raw value to use for the new instance. |