Transfer attributes from points to a volume

I have some particle simulation in geometry nodes and i want to convert these into a volume so I can apply a volumetric shader on top of it and make it look like smoke. I would want some attributes like the age of points to be used for the volume density. Does anyone know if it is possible to transfer these custom attributes to a volume that gets generated from the points?

You can use this setup:

Thank you so much man, didn’t even know about set grid background node.