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# HMCharacteristicTypeAirParticulateSize

The size of the air-particulate matter.

```
let HMCharacteristicTypeAirParticulateSize: String
```

## Discussion

The corresponding value is one of the constants enumerated in [`HMCharacteristicValueAirParticulateSize`](/documentation/HomeKit/HMCharacteristicValueAirParticulateSize).

## Topics

### Values

[`HMCharacteristicValueAirParticulateSize`](/documentation/HomeKit/HMCharacteristicValueAirParticulateSize)

Possible values for the air particulate size.


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