---
title: MTRFormaldehydeConcentrationMeasurementMeasurementUnit.PM3
framework: matter
role: symbol
role_heading: Case
path: matter/mtrformaldehydeconcentrationmeasurementmeasurementunit/pm3
---

# MTRFormaldehydeConcentrationMeasurementMeasurementUnit.PM3

## Declaration

```swift
case PM3
```