# Can I change ventilation rates for rooms?

Yes, this is done by clicking on the room and changing the *Room Type* to a *Custom Room*. You can then edit the *Air Changes Per Hour* to suit your needs.

[![image.png](https://help.heatpunk.co.uk/uploads/images/gallery/2024-12/scaled-1680-/t5rHtbTsuoUmDU8V-image.png)](https://help.heatpunk.co.uk/uploads/images/gallery/2024-12/t5rHtbTsuoUmDU8V-image.png)

For more information on this topic see our guide on [creating a floor plan](https://help.heatpunk.co.uk/books/plans-task/page/creating-a-floor-plan "Creating a Floor Plan").