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# AVCaptureDevice.SystemPressureState.Level

A structure that defines system pressure state levels.

```
struct Level
```

## Topics

### System pressure levels

[`nominal`](/documentation/AVFoundation/AVCaptureDevice/SystemPressureState-swift.class/Level-swift.struct/nominal)

A level that indicates the system pressure is normal and not under pressure.

[`fair`](/documentation/AVFoundation/AVCaptureDevice/SystemPressureState-swift.class/Level-swift.struct/fair)

A level that indicates that system pressure is slightly elevated.

[`serious`](/documentation/AVFoundation/AVCaptureDevice/SystemPressureState-swift.class/Level-swift.struct/serious)

A level that indicates that system pressure is highly elevated.

[`critical`](/documentation/AVFoundation/AVCaptureDevice/SystemPressureState-swift.class/Level-swift.struct/critical)

System pressure is critically elevated.

[`shutdown`](/documentation/AVFoundation/AVCaptureDevice/SystemPressureState-swift.class/Level-swift.struct/shutdown)

System pressure is beyond critical, so the capture system has shut down.

### Initializers

[`init(rawValue:)`](/documentation/AVFoundation/AVCaptureDevice/SystemPressureState-swift.class/Level-swift.struct/init(rawValue:))

Creates a system pressure level from its raw string value.


---

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