---
title: ProcessInfo.ThermalState.fair
framework: foundation
role: symbol
role_heading: Case
path: foundation/processinfo/thermalstate-swift.enum/fair
---

# ProcessInfo.ThermalState.fair

The thermal state is slightly elevated.

## Declaration

```swift
case fair
```

## Discussion

Discussion The system takes steps to reduce thermal state, like running fans and stopping background services that aren’t doing work immediately needed by the user. Reduce or defer background work, like prefetching content over the network or updating database indexes.

## See Also

### Constants

- [ProcessInfo.ThermalState.nominal](foundation/processinfo/thermalstate-swift.enum/nominal.md)
- [ProcessInfo.ThermalState.serious](foundation/processinfo/thermalstate-swift.enum/serious.md)
- [ProcessInfo.ThermalState.critical](foundation/processinfo/thermalstate-swift.enum/critical.md)