---
title: durationLevelValues
framework: exposurenotification
role: symbol
role_heading: Instance Property
path: exposurenotification/enexposureconfiguration/durationlevelvalues
---

# durationLevelValues

The level values for duration.

## Declaration

```swift
var durationLevelValues: [NSNumber] { get set }
```

## Discussion

Discussion important: This property is available in iOS 12.5, and in iOS 13.5 and later. This property contains eight levels, each defining a range of exposure duration: durationScores[0] when duration equals 0. durationScores[1] when duration <= 5. durationScores[2] when duration <= 10. durationScores[3] when duration <= 15. durationScores[4] when duration <= 20. durationScores[5] when duration <= 25. durationScores[6] when duration <= 30. durationScores[7] when duration  > 30.

## See Also

### Level Configuration

- [attenuationDurationThresholds](exposurenotification/enexposureconfiguration/attenuationdurationthresholds.md)
- [attenuationLevelValues](exposurenotification/enexposureconfiguration/attenuationlevelvalues.md)
- [daysSinceLastExposureLevelValues](exposurenotification/enexposureconfiguration/dayssincelastexposurelevelvalues.md)
- [transmissionRiskLevelValues](exposurenotification/enexposureconfiguration/transmissionrisklevelvalues.md)
- [metadata](exposurenotification/enexposureconfiguration/metadata.md)