---
title: minimumAttenuation
framework: exposurenotification
role: symbol
role_heading: Instance Property
path: exposurenotification/enscaninstance/minimumattenuation
---

# minimumAttenuation

The minimum attenuation of beacons received during the scan.

## Declaration

```swift
var minimumAttenuation: ENAttenuation { get }
```

## Discussion

Discussion important: This property is available in iOS 12.5, and in iOS 13.7 and later.

## See Also

### Getting Scan Instance Properties

- [secondsSinceLastScan](exposurenotification/enscaninstance/secondssincelastscan.md)
- [typicalAttenuation](exposurenotification/enscaninstance/typicalattenuation.md)