Static HMCharacteristicTypeTargetAirPurifierState 

pub unsafe static HMCharacteristicTypeTargetAirPurifierState: &'static NSString

Available on crate feature HMCharacteristicTypes only.

Characteristic type for air purifier target state. The value is one of the value defined for HMCharacteristicValueTargetAirPurifierState.

See also Apple’s documentation