# quality

> Specifies the accuracy of particle collisions against colliders in the Scene.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.ParticleSystemModule

```csharp
public ParticleSystemCollisionQuality quality { get; set; }
```

### Remarks

The high quality setting is the least likely to exhibit any leaked particles through colliders, but comes with the highest CPU load. Medium and low quality use simpler approximations and may leak particles, but offer faster performance.