---
title: MTRCarbonMonoxideConcentrationMeasurementMeasurementMedium.air
framework: matter
role: symbol
role_heading: Case
path: matter/mtrcarbonmonoxideconcentrationmeasurementmeasurementmedium/air
---

# MTRCarbonMonoxideConcentrationMeasurementMeasurementMedium.air

## Declaration

```swift
case air
```