---
title: MTRCarbonDioxideConcentrationMeasurementMeasurementUnit.PPT
framework: matter
role: symbol
role_heading: Case
path: matter/mtrcarbondioxideconcentrationmeasurementmeasurementunit/ppt
---

# MTRCarbonDioxideConcentrationMeasurementMeasurementUnit.PPT

## Declaration

```swift
case PPT
```